从下面每题所给的四个选项(A、B、C和D)中，选出最佳选项。

1. Every detail should be thought of ______ that nothing bad will happen during the Olympics.

A. make sure B. to make sure

C. making sure D. be made sure

2. I think ______ at the Net-bar will surprise Aunt Kate.

A. your being B. you are

C. you being D. you to be

3. —Did that book give the information you need?

—Yes, but ______, I have to read it entirely.

A. for finding it B. to find it

C. finding D. finding it

4. — Did you enjoy your visit there?

— Yes, but I'm very sorry ______ so soon.

A. for leaving B. of leaving

C. to leave D. to have left

5. The professor spoke slowly enough to make his speech easy ______.

A. follow B. to follow

C. followed D. following

6. — I thought you had planned to practise the piano today.

— No. I did nothing but ______ computer games all day.

A. play B. to play

C. played D. playing

7. It is I, ______, that ______ blame for the fault.

A. not him; is to B. not he; is

C. not he; am to D. not him; are to

8. It is important for parents and young people to learn how to get through to each other and develop skills in understanding and ______ understood.

A. being B. be C. are D. to be

9. We still have many difficulties ______ in our socialist construction.

A. to overcome B. to be overcome

C. overcome D. to have overcome

10. The lost child desired nothing but ______ home to see his parents.

A. go B. to go C. going D. went

11. He was lucky enough ______ when he cheated in the exam.

A. not to be seen

B. to not have been seen

C. not to have been seen

D. to not be seen

12. Mrs Harley has a habit of asking questions ______.

A. but then not listen to the answers

B. and then not listen to the answers

C. but then not listening to the answers

D. and then doesn't listen to the answers

Keys：1-6 BABDBA 7-12 CAABCC

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