15．----Did you visit the famous museum?

----No. We ____it, but we spent too much time shopping.

A． could have visited

B．must have visited

C．can't have visited

D．shouldn't have visited

14．Jim talked for about half an hour yesterday. Never ____him talk so much.

A．I heard

B．did I hear

C．I had heard

D．had I heard

13．----I rang you at about ten, but there was no reply.

----Oh, that was probably ____I was seeing the doctor.

A．when

B．why

C．what

D．that

12．----Lucy, you wash the dishes, ____?

----Mom, can't Lily do it? It's her turn.

A．don't you

B．can you

C．shall you

D．will you

11．Not all these books are second-hand; ____of them are new.

A．all　　　 B． none　　 C．some　　　 D．each

10．----He failed his exam again.

----But what did you ____? Had he ever been working hard?

A．think

B．expect

C．consider

D．regard

9．The train____ arrive at 11：30, but it was an hour late.

A．was about to

B．was likely to

C．was supposed to

D．was certain to

8．----What do people wear when they go to the theater?

----Well, it isn't very ____.　 People can wear anything they like.

A．normal　　 B．certain　　　 C．modern　　　 D．simple

7．Please tell me ____you would like to have your coffee----black or white?

A． what　　 B．where　　　 C．when　　 D．how

6．----I'm afraid I dare not speak in ____public.

----Just have____ try.

A．a；不填

B．不填；a

C． the； a

D． the； the