I tried to p___________ him to give up smoking, but failed.

He hardly has his homework finished on his own,_______?

A. has he 　 B. does he 　 C. hasn’t he 　D. doesn’t he

_______ some people regard as a drawback is seen as a plus by many others.（ ）

A. Whether　　　 B. What　　 C. That　　　　　 D. How

It will be many years ______the doctors and medical scientists can find _____ for cancer.

A. since; cures B. when; treatments C. before; cures D. until; treatments

We finished the run 　　　　　　　　　　　　(在不到规定的一半时间内). (allow)

Her boss expressed his unsatisfaction with ________she has made in the development of market.

A.little progress　　　　　　　　　　 B.the little progress

C.few progresses　　　　　　　　　　 D.the few progresses

—It's the second time that I ________ to Shanghai.

—What great changes！It's ten years since I ________ it last time.

A. have been; left　 　 B. had been; left

C. am; had left　 　　 D. come; had left

It’s too bad that my computer has got a new virus. If only I ______ that program.（ ）

A. didn’t run　　　 B. haven’t run　　 C. hadn’t run　　 D. wouldn’t run

The government is trying to take powerful m ______ to increase effective supply while reducing the price.

They_______making preparations for the coming procession.

A. set about　　 B. set out

C. set to　　 　 D. set forth