1. Questions

english

I need help explaining why the answers i have are correct. i am stumped please help me!

Read the following sentences, and focus on the grammar area specified in the left column. Then, complete Appendix V by entering the correct sentence choice (a or b) for each number as well as an explanation of why you made that choice. Subject-verb agreement 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 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 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 4a. John has become a rather good actor.
4b John has became a rather good actor.
Using regular and irregular verbs 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 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 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 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 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 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 11a. The antecedent in the following sentence is Doctors: Doctors should
antecedents 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 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 13a. Most presenters spoke without looking at his or her notes.
13b. Most presenters spoke without looking at their notes.
Pronoun-antecedent agreement 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 15a. Neither the mayor nor the council members have filed their reports.
15b. Neither the mayor nor the council members have filed his or her reports.
Pronoun-antecedent agreement with indefinite pronouns 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 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 18a. My brother knows more about technology than me.
18b. My brother knows more about technology than I.
Pronoun case 19a. Please send an invitation to Bob and she.
19b. Please send an invitation to Bob and her.
Pronoun case 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 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 22a. To who should we send the letter of commendation?
22b. To whom should we send the letter of commendation?
Pronoun case 23a. Jon Bon Jovi, who is a well-known singer and actor, once owned an arena
for who and whom football team.
23b. Jon Bon Jovi, whom is a well-known singer and actor, once owned an arena football team.
Vague pronouns 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 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 with population growth. This is a big problem for many cities.

Comprehensive Grammar Answer Form

Enter the correct answer for each item in Appendix W by typing either a or b in the second column. Provide an explanation for each choice in the Rationale column.
Item Correct Answer
(a or b) Rationale
1. B
Singular subject = singular verb
You is singular, therefore the verb ( has criticized) is incorrect.

Correct would be "you have criticized.”

2. A
Peer editing is singular, the verb must be singular.

3. A
Vitamins is plural, the verb must be plural.

4. A
Correct to use 'has' with the past participle

5.

A
6.

B
7.

B
8.

B
9.

A
10.

A Students have to be organized to keep up their classes...not the classes have to be organized.

11.

B
B is correct because it is the patients who should not be waiting.

12.

B
13.

B
14.

B
15.

B
16.

A
17.

A
18.

B I is a nominative case pronoun and is used as a subject. Me is an objective case pronoun and is used as an object.

19.

B
20.

A
21.

A
22.

A
23.

B
24.

B You have to ask yourself -what made the noise, the car or the tree.
25.

A You have to ask yourself- what is a big problem, the pollution or the population growth.