I meant ________ you, but I was so busy．

A．to call on

B．calling on

C．to call at

D．calling at

Revolution means ________ the productive forces．

A．to liberate

B．liberate

C．liberated

D．liberating

On Saturday afternoon, Mr．Green went to the market, ________ some bananas and visited her cousin．

A．bought

B．buying

C．to buy

D．buy

Tom's ________ the job made me upset．

A．refuse

B．refused

C．refusing

D．to be refused

She went out, ________ her baby by itself．

A．left

B．leaving

C．having left

D．to leave

－The villagers are going to dig a well to irrigate the fields．

－That's good．But ________?

A．What if

B．What about

C．What for

D．What with

He said,“Can we go up to your room?”“________?”she demanded suspiciously．

A．What if

B．What about

C．What for

D．What with

－________ this doesn't work out?

－Then we'll try some other way．

A．What if

B．What about

C．What for

D．What with

－Why is the librarian looking so hard at me?

－Readers ________ to speak aloud in the reading room．

A．don't suppose

B．haven't supposed

C．aren't supposed

D．aren't supposing

－Will you come with us?

－Yes, I suppose ________．

A．it

B．that

C．this

D．so