Can anyone tell me if this is correct please? My answers are on the line before the statements.

Comprehensive Grammar CheckPoint
Read the following sentences, and focus on the grammar area specified on the top line before the statement then select the correct sentence (a or b)

Subject-verb agreement A 1a. Did you know a famous animal-rights activist has criticized horseracing because of the dangers involved? 1b. Did you know a famous animal-rights activist have criticized horseracing because of the dangers involved
Subject-verb agreement B
2a. Peer editing academic papers require critical-thinking skills and diplomacy.
2b. Peer editing academic papers requires critical-thinking skills and diplomacy.
Subject-verb agreement A
3a. Vitamins that are sold in a health-food store are not regulated by the Food and Drug Administration.
3b. Vitamins that are sold in a health-food store is not regulated by the Food and Drug Administration.
Using regular and irregular verbs A
4a. John has become a rather good actor.
4b. John has became a rather good actor.
Using regular and irregular verbs A
5a. Some athletes have taken drug tests to prove they are not on steroids.
5b. Some athletes have took drug tests to prove they are not on steroids.
Using regular and irregular verbs B
6a. I lay my book on the table, but now I cannot find it.
6b. I laid my book on the table, but now I cannot find it.
Using the correct form of be and have in the present tense B
7a. I was interested in working on the presidential campaign if the opportunity still exists.
7b. I am interested in working on the presidential campaign if the opportunity still exists.
Verb form and verb tense B
8a. Since American Idol premiered on television, many talented contestants have appeared on the show.
8b. Since American Idol premiered on television, many talented contestants appeared on the show.
Verb form and verb tense A
9a. The ancient Egyptians built pyramids as burial sites for their leaders.
9b. The ancient Egyptians have built pyramids as burial sites for their leaders.
Identifying antecedents A
10a. The antecedent in the following sentence is students: Students in online classes have to be organized to keep up with their assignments.
10b. The antecedent in the following sentence is class: Students in online classes have to be organized to keep up with their assignments.
Identifying antecedents B
11a. The antecedent in the following sentence is Doctors: Doctors should schedule more time for patients so they do not spend so much time in the waiting room.
11b. The antecedent in the following sentence is patients: Doctors should schedule more time for patients so they do not spend so much time in the waiting room.
Pronoun-antecedent agreement B
12a. When a driver wants to buy a new vehicle, he or she usually test drives them. 12b. When a driver wants to buy a new vehicle, he or she usually test drives it.
Pronoun-antecedent agreement B
13a. Most presenters spoke without looking at his or her notes.
13b. Most presenters spoke without looking at their notes.
Pronoun-antecedent agreement B
14a. You may rent a movie or a video game for just one night if they are new.
14b. You may rent a movie or a video game for just one night if it is new.
Pronoun-antecedent agreement with indefinite pronouns A
15a. Neither the mayor nor the council members have filed their reports.
15b. Neither the mayor nor the council members have filed his reports.
Pronoun-antecedent agreement with indefinite pronouns B
16a. Anyone who requests a copy of the game may have it for their video library.
16b. Anyone who requests a copy of the game may have it for his or her video library.
Pronoun-antecedent agreement with indefinite pronouns A
17a. Each of the applicants must submit his or her completed form to the interviewer.
17b. Each of the applicants must submit their completed forms to the interviewer.
Pronoun case A
18a. My brother knows more about technology than me.
18b. My brother knows more about technology than I.
Pronoun case B
19a. Please send an invitation to Bob and she.
19b. Please send an invitation to Bob and her.
Pronoun case A
20a. My best friend and I are going to Hawaii this summer.
20b. My best friend and me are going to Hawaii this summer.
Pronoun case for who and whom A
21a. Who was the star of last year’s award-winning movie?
21b. Whom was the star of last year’s award-winning movie?
Pronoun case for who and whom B
22a. To who should we send the letter of commendation?
22b. To whom should we send the letter of commendation?
Pronoun case for who and whom A
23a. Jon Bon Jovi, who is a well-known singer and actor, also owns an arena football team.
23b. Jon Bon Jovi, whom is a well-known singer and actor, also owns an arena football team.
Vague pronouns A
24a. When the car hit a tree, it made a terrible noise.
24b. The car made a terrible noise as it crashed into a tree.
Vague pronouns B
25a. Air pollution normally increases along with population growth. This increasing pollution is a big problem for many cities.
25b. Air pollution normally increases along

I disagree with #8, 18

in #24 , B is the better sentence.

#25 was not finished.

don't you need to add your explanation to them showing how you come to that answer.

im doing the same assignment and im confused when it comes to using have and has

In order to check whether the given statements are correct or not, we need to analyze the grammar of each sentence. Let's go through each sentence and identify any errors:

1a. Did you know a famous animal-rights activist has criticized horseracing because of the dangers involved? - Correct, subject-verb agreement is accurate.

1b. Did you know a famous animal-rights activist have criticized horseracing because of the dangers involved? - Incorrect, the subject "a famous animal-rights activist" is singular, so it should be "has" instead of "have."

2a. Peer editing academic papers require critical-thinking skills and diplomacy. - Incorrect, verb should agree with the subject "peer editing academic papers," so it should be "requires" instead of "require."

2b. Peer editing academic papers requires critical-thinking skills and diplomacy. - Correct, subject-verb agreement is accurate.

3a. Vitamins that are sold in a health-food store are not regulated by the Food and Drug Administration. - Correct, subject-verb agreement is accurate.

3b. Vitamins that are sold in a health-food store is not regulated by the Food and Drug Administration. - Incorrect, the subject "vitamins" is plural, so it should be "are" instead of "is."

4a. John has become a rather good actor. - Correct, verb form and tense are accurate.

4b. John has became a rather good actor. - Incorrect, "has become" is the correct past participle form.

5a. Some athletes have taken drug tests to prove they are not on steroids. - Correct, verb form and tense are accurate.

5b. Some athletes have took drug tests to prove they are not on steroids. - Incorrect, "have taken" is the correct past participle form.

6a. I lay my book on the table, but now I cannot find it. - Incorrect, it should be "laid" instead of "lay" to indicate past tense.

6b. I laid my book on the table, but now I cannot find it. - Correct, verb form and tense are accurate.

7a. I was interested in working on the presidential campaign if the opportunity still exists. - Incorrect, for present tense, it should be "am interested" instead of "was interested."

7b. I am interested in working on the presidential campaign if the opportunity still exists. - Correct, verb form and tense are accurate.

8a. Since American Idol premiered on television, many talented contestants have appeared on the show. - Correct, verb form and tense are accurate.

8b. Since American Idol premiered on television, many talented contestants appeared on the show. - Incorrect, "have appeared" is the correct past participle form.

9a. The ancient Egyptians built pyramids as burial sites for their leaders. - Correct, verb form and tense are accurate.

9b. The ancient Egyptians have built pyramids as burial sites for their leaders. - Incorrect, "built" is the correct past tense form.

10a. The antecedent in the following sentence is students: Students in online classes have to be organized to keep up with their assignments. - Correct, the antecedent is correctly identified.

10b. The antecedent in the following sentence is class: Students in online classes have to be organized to keep up with their assignments. - Incorrect, the antecedent is actually "students" and not "class."

11a. The antecedent in the following sentence is Doctors: Doctors should schedule more time for patients so they do not spend so much time in the waiting room. - Incorrect, the antecedent is actually "patients" and not "doctors."

11b. The antecedent in the following sentence is patients: Doctors should schedule more time for patients so they do not spend so much time in the waiting room. - Correct, the antecedent is correctly identified.

12a. When a driver wants to buy a new vehicle, he or she usually test drives them. - Incorrect, it should be "test drives it" because "vehicle" is singular.

12b. When a driver wants to buy a new vehicle, he or she usually test drives it. - Correct, pronoun-antecedent agreement is accurate.

13a. Most presenters spoke without looking at his or her notes. - Incorrect, it should be "their notes" as a more inclusive pronoun to refer to multiple presenters.

13b. Most presenters spoke without looking at their notes. - Correct, pronoun-antecedent agreement is accurate.

14a. You may rent a movie or a video game for just one night if they are new. - Incorrect, it should be "if it is new" since we are referring to a single movie or video game.

14b. You may rent a movie or a video game for just one night if it is new. - Correct, pronoun-antecedent agreement is accurate.

15a. Neither the mayor nor the council members have filed their reports. - Correct, pronoun-antecedent agreement is accurate.

15b. Neither the mayor nor the council members have filed his reports. - Incorrect, it should be "their reports" to be inclusive of both the mayor and the council members.

16a. Anyone who requests a copy of the game may have it for their video library. - Incorrect, it should be "his or her video library" to be more inclusive.

16b. Anyone who requests a copy of the game may have it for his or her video library. - Correct, pronoun-antecedent agreement is accurate.

17a. Each of the applicants must submit his or her completed form to the interviewer. - Correct, pronoun-antecedent agreement is accurate.

17b. Each of the applicants must submit their completed forms to the interviewer. - Incorrect, it should be "his or her completed form" to match the singular subject.

18a. My brother knows more about technology than me. - Incorrect, it should be "than I" because it is a comparison of two subjects.

18b. My brother knows more about technology than I. - Correct, pronoun case is accurate.

19a. Please send an invitation to Bob and she. - Incorrect, it should be "her" because it is the object of the preposition "to."

19b. Please send an invitation to Bob and her. - Correct, pronoun case is accurate.

20a. My best friend and I are going to Hawaii this summer. - Correct, pronoun case is accurate.

20b. My best friend and me are going to Hawaii this summer. - Incorrect, it should be "I" because it is the subject of the sentence.

21a. Who was the star of last year’s award-winning movie? - Correct, pronoun case is accurate.

21b. Whom was the star of last year’s award-winning movie? - Incorrect, it should be "Who" because it is the subject of the sentence.

22a. To who should we send the letter of commendation? - Incorrect, it should be "whom" because it is the object of the preposition "to."

22b. To whom should we send the letter of commendation? - Correct, pronoun case is accurate.

23a. Jon Bon Jovi, who is a well-known singer and actor, also owns an arena football team. - Correct, pronoun case is accurate.

23b. Jon Bon Jovi, whom is a well-known singer and actor, also owns an arena football team. - Incorrect, it should be "who" because it is the subject of the relative clause.

24a. When the car hit a tree, it made a terrible noise. - Correct, pronoun reference is clear.

24b. The car made a terrible noise as it crashed into a tree. - Correct, pronoun reference is clear.

25a. Air pollution normally increases along with population growth. This increasing pollution is a big problem for many cities. - Correct, pronoun reference is clear.

25b. Air pollution normally increases along...