Answer:
The answers to these questions are as follows:
1. The teacher tells her students, who promise they will study... This is because the students are negotiating with their teacher, something they will do, in exchange for something she will give.
2. The answer is: Became. This is because it is what actually happened at the time, in the past.
3. The answer is held, this is because all verbs are in the past tense, thus this one has to be in that tense also.
4. The answer is: his singing, because it is the object that belonged to Kenny and John hated.
5. The answer is: has. This is because the verb is talking about a single subject, which is the dog, and the verb IS, establishes the present tense.
6. The answer is: should have gotten. This is because this is a sentence of possibility, or probability, where the modal should needs to be used.
7. The answer is: walked. Because this is an action in the past tense.
8. The answer is: effect/affected. Effect is what happened to the subject and affected explains her response to the action.
9. Mom and dad´s is the choice as they are a unit, and the store belongs to the two of them. It is not necessary to state ownership from both.
10. Them. This is the correct pronoun that has to be used.
11. Levee. This is the word that means embankment to hold a river, or water, which is the contect of the sentence.
12. Intents and purposes. This is the correct way to say it.
13. Seized would be the word that fits the definition given by the context.
14. Granted. This is the word that fits the context.
15. C would be the choice as it is where the senteces are correctly divided. The second sentence is an addition to the first.
16. The correct one is the first, as it is the one where punctuation and capitals are correctly used.
17. Again the first choice is the correct one due to punctuation and capitals.
18. C, is the correct choice. Correct capitalization.
19. C again is the correct choice, due to correct use of capitals.
20. A, is the right choice. Capitals are correctly used here.
21. In Spain, is the main sentence, and it needs to be divided from the second subject, They, thus using the comma. Also, siestas is not a proper noun, so it does not need to have a capital. This is why the answer is A.