1.　　 When new types of computers appear on the market, the prices of old computers may ___ .

A.　 go up　 B. fall down　 C. come down　 D. rise

3.　　 That’s the house that the great scientist lived _____20 years ago .

2.　　 I can’t find the factory which I worked _______ when I was young .

1.　　 He is a naughty boy whom you can’t go ________ .

3.　　 I have lost my pen ___ I bought last Sunday .

A.　 what　 B. that　 C. it　 D. this

2.　　 Do you know the man ___ is talking to your father at the moment ?

A.　 who　 B. whom　 C. which　 D. what

1.　　 The robot followed Mr Mott all the time and saw everything ___ he did .

A.　 who　 B. whom　 C. that　 D. what

3.　　 He often say that he ___ any help from others .

A.　 needn’t　 B. needs not　 C. doesn’t need　 D. doesn’t need to

2.　　 You ___ do your homework right now. You can do it after supper.

A.　 need　 B. needn’t　 C. don’t need　 D. needn’t to

1.　　 I ___ go over my lessons once again because I can pass the examination easily next week .

A.　 don’t need　 B. needn’t to　 C. don’t need to　 D. need to