1. Christina and Christopher worked together and completed a project about astronomy.

a. sentence structure is correct
b. sentence contains a simple subject and a compound predicate
c. sentence contains a compound subject and a simple predicate
d. sentence contains a compound sentence and a compound predicate

D

2. Jennifer and her brother were not allowed to go to Great Adventure with the Jones family.
a. sentence structure is correct
b. sentence contains a simple subject and a compound predicate
c. sentence contains a compound subject and a simple predicate
d. sentence contains a compound subject and a compound predicate

i'm stuck between A and D. D?

3. The showy girls in the red sports car were stopped by a police officer when they ran the red light.
a. "The showy girls" is the complete subject
b. "The showy girls in the red sports car" is the complete subject
c. "When they ran the red light" is the complete subject
d. "Were stopped by a police officer" is the complete subject.

B

4. Take this to Grandmother's house.
a. Sentence structure is incorrect
b. sentence is an interrogative sentence
c. sentence is an imperative sentence, and the subject is "you understood"
d. sentence contains no subject

C

5. when are you having Jamie's surprise party?
a. "When are you" is the complete subject
b. "You having Jamie's suprise party" is the complete subject
c. "Jamie's surprise party" is the complete subject.
d. "You" is the complete subject

D

2. Both A and C are correct.

The rest are correct.

1. To determine the correct answer, we need to analyze the sentence structure. The sentence "Christina and Christopher worked together and completed a project about astronomy" has a compound subject, "Christina and Christopher," and a simple predicate, "worked." Therefore, the correct answer is c. The sentence contains a compound subject and a simple predicate.

2. Similarly, we need to analyze the sentence structure of "Jennifer and her brother were not allowed to go to Great Adventure with the Jones family." The sentence has a compound subject, "Jennifer and her brother," and a compound predicate, "were not allowed to go" and "with the Jones family." Therefore, the correct answer is d. The sentence contains a compound subject and a compound predicate.

3. In this sentence, "The showy girls in the red sports car were stopped by a police officer when they ran the red light," we need to identify the complete subject. The complete subject is the noun or pronoun that tells whom or what the sentence is about. The complete subject in this sentence is "The showy girls in the red sports car." Therefore, the correct answer is b. "The showy girls in the red sports car" is the complete subject.

4. The sentence "Take this to Grandmother's house" is an imperative sentence because it gives a command or makes a request. The subject of an imperative sentence is often understood to be "you." Therefore, the correct answer is c. The sentence is an imperative sentence, and the subject is "you understood."

5. In the sentence "When are you having Jamie's surprise party?" we need to identify the complete subject. The complete subject is "you," which refers to the person being asked about the timing of Jamie's surprise party. Therefore, the correct answer is d. "You" is the complete subject.