35.　 - Sorry, I can’t go camping with you. I have to prepare well enough for the entrance

　　　 exam.

- ________! We can camp together next time.

A. Don't say so　 B. Congratulations　 C. Good luck D. No problem

34.　 ________ the Internet is of great help, I don’t think it’s a good idea to spend too much 　

time on it.

A. While　　　 　 B. As　 　 　　　　 C. Because　　　 D. If

33.　 - I’m really hungry now.

-　　 That’s because you have left your lunch __________.

A. having untouched　　 　　　　　　　 B. to be untouched　 　　

C. untouched　 　 　　　　　　　　　　 D. being untouched

32.　 - How much do I owe you for this supper?

- _________. It’s nothing.

A. You are welcome 　　　　　　　　 B. Forget it

C. With pleasure　 　　　　　　　　 D. That’s all right

31.　 When Marx was in London, he _______ read at the library for hours.

A. would　 　　　 B. might　 　　　　　 C. could　 　　　 D. should

30.　 Let’s learn to use the problem we are facing ______ a stepping-stone to future success.

A. to　　　　　 B. for　　　　　 　　　 C. as　　　　　　 D. by