The driver drank a lot of wine, otherwise the traffic accident ________ happened.

[　　]

A. would have　　　 　 B. would

C. had 　　　　　　　　D. wouldn’t have

When they were living together at that time, they _______ tell each other jokes.

[　　]

A. must 　　　B. could

C. would　　　D. might

The doctor will not carry out the operation _______ it is necessary. 

[    ]

A. as　　　  B. if

C. for 　　　D. unless

The place ______ interests the children most is the Children’s Palace.

[　　]

A. that 　　　B. where

C. what 　　　D. in which

_______ I met her?

[　　]

A. Do you imagine where

B. Where do you imagine

C. Did you imagine where

D. Where did you imagine

China is no longer ______ it used to be.

[　　]

A. that　　　　 B. which

C. what　　　　 D. the country

On Teacher’s Day, I was much honoured to receive a greeting card, which was ______ gift.

[　　]

A. a most welcome

B. the most welcome

C. a most welcomed

D. the most welcomed

Take you raincoat with you _______ it rains.

[　　]

A. because    B. in case

C. since　　　D. for

All _______ ready for the celebration, and all ______ eager to have a good time.

[　　]

A. was … was　　 B. were … were

C. was … were    D. were … was

Hurry up and you _______ the experiment in a few minutes.

[　　]

A. finish　　　　　　  B. have finished

C. will finish 　　　　D. are finishing