This sentence needs ___________ .
A. a improvement B. improve C. improving D. improved

——How time flies! It's already twelve o'clock.

　 ——Oh, really? I　　　　　　　 it at all.

　A.don't realize　 　　 B.didn't realize　 C.haven't realized　　 D.hadn't realized

The book has been translated into 30 languages since it ____ on the market in 1973.

A.had come B.has come C. came D. comes

We like the oil painting better, ______ we looked at it.

　 A. as 　 B. while

　 C. the moment 　 D. the more

Do you think regular exercise ___________ good health?
A. benefit from      B. reach for       C. make for      D. go for

On AIDS Day, the minister of Health Department demanded that the problems ___________ paid special attention to.

A. referred to being B. referred to be C. refer to being D. refer to be

He was determined that his children _____ to the best school available.

A. should go 　 B. went　 C. ought to go 　 D. would go

A notice was ________ in order to remind the students of the changed lecture time .                                   

A. sent up 　 　 B. given up  　 　　 C. set up 　 　　　 D. put up

The train ______ she was travelling was late.

A. which 　　　　B. where　　　 C. on which 　　　 D. in that

____ fire, all exits must be kept clear.

A. In place of B. Instead of C. In case of　 D. In spite of