We don't visit Tom ________.

[　　]

A．as many as we were used to

B．as many as we used to

C．as much as we used to

D．as much as we were used to

70 percent of the surface ________ water.

[　　]

A．is covered with

B．cover with

C．are covered with

D．covers with

He used to ________ cards with his friends, but now he is used to ________ a walk after supper.

[　　]

—What made him unhappy?

________.

[　　]

A．Lost his way to the hotel

B．Because of losing his way to the hotel

C．He lost his way to the hotel

D．Losing his way to the hotel

— ________ I return the dictionary within three days?

—No, you ________.You ________ it for five days.

[　　]

A．May; needn't; can borrow

B．Can; mustn't; would have

C．Must; don't have to; can keep

D．Shall; can't; should read

Everybody says that the problem is difficult ________.

[　　]

I can hardly imagine little Franz ________ out such a difficult maths in five seconds.

[　　]

The traffic was ________ by an accident yesterday.

[　　]

________ the place where I grew up, this town is exciting.

[　　]

After the rain, you should get ________ the room.

[　　]