Yesterday I bought a book about ________ sun and ________ moon.

[　　]

Will you please ________ it again?

[　　]

Children mustn't play ________ fire but they may play ________ football.

[　　]

This is ________ picture.

[　　]

There is ________ tree in the mountain village.

[　　]

A．an 18-metres-tall

B．an 18-metre-tall

C．a 18-metres

The house was dirty. They ________ it for weeks.

[　　]

A．had cleaned

B．have cleaned

C．had not cleaned

D．have not cleaned

He didn't come to work yesterday because he ________ ill.

[　　]

She said she hoped ________ her soon.

[　　]

从所给的四个选项中选择最佳答案

Do you know ________．　　　

[　　]

A．when does the train leave

B．when did the train leave

C．when the train leaves

D．when will the train leave

从所给的四个选项中选择最佳答案

This kind of book ________．

[　　]

A．are sold well

B．are sold good

C．sells well

D．sells good