1. It is reported that a (n) _________ of accidents has occurred at that crossroads.

　　A. series

　　B. lot

　　C. number

　　D. amount

　　2. If someone is in the United States for good，it means he is there _________.

　　A. to do good

　　B. temporarily

　　C. to rest well

　　D. permanently

　　3. Please let us have more time，_________.

　　A. shall we

　　B. will you

　　C. won't

　　D. Don't you

　　4. There is no hurry. You can take your time _________ those exercises.

　　A. doing

　　B. to do

　　C. done

　　D. to be doing

　　5. He spoke English so well that I took it _________ that he was an American.

　　A. for granted

　　B. as true

　　C. for certain

　　D. as such

　　6. _________ we need air and water，so we need criticism and self-criticism.

　　A. Even though

　　B. So long

　　C. Just as

　　D. Now that

　　7. Children are always curious _________ everything they see.

　　A. to

　　B. for

　　C. on

　　D. about

　　8. Anyone，rich or poor，old or young，sick or _________ can follow a favorite hobby.

　　A. well

　　B. good

　　C. fine

　　D. happy

　　9. It's desired that she _________ to teach us at least twice a week.

　　A. is

　　B. will

　　C.

　　D. may

　　10. _________，I should ask them some questions.

　　A. Should they to us

　　B. If they to us

　　C. Were they to us

　　D. Had they to us