9.  ―What are you busy doing these days?

―    the College Entrance Examination.

A. Preparing for     B.  To prepare for

C. To be preparing for   D.  Prepared for

8. The railway station was overflowing with people     back home for the Spring Festival.

A. to head      B. heading

C. headed     D. head

6. ―I didn't go to the art show, because I lost my ticket.

一You    have borrowed mine. I didn't go to see it anyway.

A. might       B. need

C. could       D. must

5. The killer insisted that she was defending herself when     .

A. attacking    B. attacked

C. to attack     D. having attacked

4.    difficult to understand, the lecture was poorly thought of.

A. Sounded    B. Sounding

C. To sound   D.  Being sounded

3.    the employees' working efficiency, the manager will allow them to have a coffee break.

A. Improving  B,  To improve

C. Improved   D. Having improved

2. [2014 '北京卷]I found the lecture hard to follow because it    when I arrived.

A. started       B.  was starting

C. would start      D.  had started

1. I've ordered some pizza, so we    worry about cooking when we get home

tired.

A. can't    B.  dare not

C. needn't   D.  may not

7. Many people  are  taking part  in various TV programmes    overnight success.

A. achieving       B . to achieve

C. being achieved    D.  having been achieved

20. Growing up    be difficult, for you will come across many things that confuse you.

A. can     B. should

C. must      D. shall