The old professor told us that every part of the materials should be made use of ________ the station．

A．building

B．to build

C．build

D．being built

It was in September ________ we came to NO．3 Middle School．

A．that

B．before

C．when

D．since

Helen always helps her mother even though going to work ________ most of her day．

A．takes up

B．makes up

C．saves up

D．puts up

The government has taken ________ measures to stop pollution, hoping to call the attention of all people to face the problem．

A．a great many

B．a great deal of

C．a plenty of

D．a large amount of

We'd better not leave until the play ends, for the last ________ of the play is very important．

A．scene

B．sight

C．scenery

D．view

He is ________ at repairing motorcycles．

A．quite a expert

B．a quite expert

C．quite expert

D．a very expert

Great changes ________ in China in the past 20 years．

A．took place

B．have taken place

C．were taken place

D．have been taken place

Hearing the ________ story, the little boy had a ________ expression on his face．

A．frightening; frightening

B．frightened; frightened

C．frightening; frightened

D．frightened; frightening

I'm Chinese and I do feel ________ Chinese language is ________ most beautiful language．

A．the; a

B．/; the

C．the;/

D．/; a

I've tried very hard to improve my English．But by no means ________ with my progress．

A．the teacher is not satisfied

B．is the teacher not satisfied

C．the teacher is satisfied

D．is the teacher satisfied