The boy is David Green．________ first name is ________．

A．He; Green

B．His; Green

C．He; David

D．His; David

Here ________ my baseballs．

A．are

B．is

C．be

D．am

－Hello, Tim! What’s that?

－It’s ________ eraser．

A．a

B．an

C．the

D．不填

One of his students was seen ________ the Internet bar yesterday afternoon．．

A．enter

B．to enter

C．entering

D．entered

Do you know how much energy it ________ to recycle a plastic bag like this?

A．pays

B．costs

C．takes

D．spends

________ are made of ________

A．Glasses, glass

B．Glasses, glasses

C．Glass, glass

D．Glass, glasses

She plays basketball ________ to join the school team．

A．good enough

B．enough good

C．well enough

D．enough well

I don't know much about computer, ________．

A．too

B．either

C．also

D．neither．

I think the Great Wall is ________ unusual wonder in the world．

A．a

B．an

C．/

D．the

You'd better ________ smoking, ________ you will get ill．

A．go on; so

B．give up; and

C．give up; or

D．give in; so