For nearly three hours we waited for the decision, only _____ to come again the next day.

A. to tell　　　　 B. telling　　　　 C. to be told　　　 D. being told

Unless they are programmed by humans, computers are nothing more than big pieces of metal. But once____ what to do , they show extraordinary power in carrying it out.

　　A. taught B. teaches C. teaching D. to teach

Scientists photographed for the first time ever _____ wild gorillas used a stick to test the depth of a pool before getting into it, according to a recent study.

A. which　　 B. what　　 C. that　　　 D. when

It’s terrible. The car ________ break down just as we were going on our holiday.

A. should　　　　B. would　　　　 C. could　　　　 D. must

There was ______ time _______ I hated to go to school.

A．a; that　　 B．a; when　 C．the; that　　 D．the; when

He said he would return the money, and I was ______.

A. fool enough to believe him

B. enough fool to believe him

C. fool enough believing him

D. enough fool believing him

I ______, but I was prevent by the heavy rain.

　 A. had meant coming 　 B. had meant to come

　 C. meant to come 　 D. meant coming

Don't ______.You will ______ new customs and different ways of thinking.

A．lose your heart；apply to

B．lost heart；apply yourself to

C．lose your heart；adapt to

D．lose heart；adapt yourself to

______ it rain tomorrow , we would have to put off the visit to the Yangpu Bridge.

A. Was　 B. Should　 C. Would　 D. Will