－How much does it cost to build the school library?

－Four ________ Yuan．

A．million

B．millions

C．millions of

D．millions of

When traffic lights are red, we ________ stop and wait．

A．may

B．can

C．must

D．might

Ricky caught a bad cold yesterday, ________ he had to stay at home．

A．because

B．but

C．or

D．so

Don’t talk to Simon like that．He is only ________ eleven year-old boy．

A．a

B．an

C．the

D．不填

So far a lot of man-made satellites ________ into space．

A．are being sent up

B．have being sent up

C．have sent up

D．have been sent up

Don’t worry．She can take care of the old woman ________．

A．careful enough

B．carefully enough

C．enough careful

D．enough carefully

We haven’t finished our classwork, ________?

A．have we

B．haven’t we

C．don’t we

D．do we

________ is dangerous to play in the street．

A．This

B．That

C．It

D．He

The student didn’t go to bed ________ eleven o’clock．

A．before

B．until

C．after

D．when

The dictionary ________ me fifteen dollars．

A．cost

B．paid

C．took

D．spent