If an earthquake ________ occur, the old buildings would fall down easily, which is sure to cause a lot of deaths．

A．would

B．will

C．is going to

D．were to

The host family treated me as though I ________ a member of the family while I studied in France．

A．am

B．were

C．would be

D．should be

The actor threw himself from the horse, as if ________．

A．to be shot

B．being shot

C．shooting

D．shot

He felt as if he alone ________ what had happened．

A．be responsible to

B．should be responsible to

C．be responsible for

D．were responsible for

How Mary wishes she stayed slim, but she ________ too much．

A．ate

B．eats

C．had eaten

D．would eat

We often hear old people wishing they ________ young again．

A．are

B．were

C．had been

D．will be

Was it not until you began to work ________ how much time youhad wasted?

A．did you realize

B．that you realized

C．did you not realize

D．that you didn’t realize

It was on the farm ________ he spent his childhood he learned how to grow vegetables．

A．where; that

B．which; when

C．that; that

D．which; which

Is it only on the world market ________ we can prove the quality of our goods?

A．that

B．ever since

C．where

D．now that

Among picture books for the children, several outstanding works appeared that they combined original stories with ________ illustrations．

A．imaginable

B．imaginative

C．imaging

D．imageless