Clinical evidence began to__________, suggesting that the new drugs had a wider range of useful activities than had been predicted from experiments in animals.
A. operate　　　　 B. straighten　　　　 C. approve　　　　 D. accumulate

　　 he knew nothing about her.

A、He appears as if　　 B、It seems that　　 C、It appears as if　　 D、It seems as if

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_______________________________________________

Li Ming 　　　in that village after reading the news.　　　

A. was volunteered teaching　　 B. volunteered to teach

C. volunteered teaching　　　　 D. was volunteered to teach

The two men discussed and came to________conclusion that the helicopter would take________place of the car some day.

A．/；/　　　　　　　　　　　　　 B．a；the　　 　

C．/；the　　 　　　　　　　　　　 D．a；/

— The boss said we had only three days to finish the work.

　 — Don't worry. We have already ________ two thirds of it.

　 A. got down　　　 B. got through　　 C. given in　　　　 D. given away

He wouldn’t leave the TV set, ________ he was going to have an important exam the next day.

A. even so　　　 B. as if　　　　　 C. even if　　　　 D. as though