15.The professor can hardly find sufficient grounds ____ his argument in favour of the new theories.

A. on which to base B. which to base on C. on what to base D. that to base on

二.用适当的词填空

1. It is no longer a question now ___________ man can land on the moon.

2. _____________ surprised me most was that she didn't even know ____________ the difference between the two lies.

3. There is no doubt ____________ my friend was not important to them all.

4. The mountain is no longer ___________ it uesed to be.

5. It worried her a bit ___________ her hair was turning gray.

6. The difficulty we now meet with is ___________ we can persuade him to tell me the truth.

7. _________ we need money is quite clear.

8. Can you make sure ___________ Alice has put the gold ring?

9. ___________ the car can be used has not been known yet.

10. ____________ we can't understand is __________ he didn't join us in our discussion.

11. The fact ____________ he is a model teacher is well-known.

12. They expressed the hope _____________ they would come over to China again.

13. Word came ____________ his poem won the first prize.

14. It makes no difference ____________ we will share the office with.

15.Go and get your umbrella. It's _____________ you left it.

16.A computer can only do ______________ you have instructed it to do.

17.Mr Smith was always thinking of ______________ he could help others.

三.语法填空

Even if you have a good salary, you may still feel ____1____ of money. To help you better manage your salary, here ___ 2_____(come) some money saving tips.

First , you need to set goals to encourage yourself to save money. Second , form money saving habits ___3___ staying away from those ___4____ waste money. Think twice ___ 5____ using money on expenses. When going to a supermarket, write down ___ 6 __ you want to buy to avoid buying ___7 __(necessary) stuffs. Girls who always spend money on clothes, should keep __ 8 _____ eye open for discounts ------ you're likely to buy good summer dress in winter at a reasonable price. Fourth , economize our social life. When it's your turn to buy a meal, invite your friends to your home and cook the dinner yourself. If you separate from your boyfriend, you __ 9 __ (suppose) to donate the gifts he sent to you to some charities instead of throwing ____10 away. Finally, you need find other ways to earn extra money.

四 完型填空。

You are near the front line of a battle. Around you shells are exploding; people are shooting from a house behind you. What are you doing there? You aren't a soldier. You aren't 1 carrying a gun. You're standing in front of a 2 and you're telling the TV 3 what is happening.

It's all in a day's work for a war reporter, and it can be very 4 . in the first two years of the 5_