Answer:
C. To prove that you read the book or article closely
Explanation:
When you use a quote from a book or article, or whatever you're reading, that shows that you read the book or whatever, which is what option C is saying.
Answer:
1. He's tall, isn't he?
2. They're not coming soon, are they?
3. She does basketball, doesn't she?
4. We weren't at the party yesterday, we're we?
5. You can drive, can't you?
6. She did a lot of work, didn't she?
7. They must keep the kitchen clean, musn't they? ( This one's kind of hard sorry if it's not correct, but I believe it is)
8. You'll come to my recital, won't you?
9. We won't be excepted to help, will we?
10. They've started on their homework, haven't they?
11. He could just walk to school in the morning, couldn't he?
12. She wouldn't steal anything from the store, would she?
Answer:
Jeff told me that he had packed the torch. Jack explained to me that he can't go to sleep because of the heavy rain. Kate asked me if I had heard a strange noise outside. Ellen said that she's really frightened of dogs. Jacob told us not to leave the tent at night.