Would you mind ________ the radio? I'm making a telephone call．

A．turning up

B．turning down

C．turn off

D．turn on

Hurry up, ________ you will miss the early bus．

A．or

B．and

C．but

D．so

Amy ________ the school library．She ________ books three times a week．

A．has gone to; has used to borrow

B．has been to; used to borrow

C．has gone to; has been used to borrowing

D．has been to; is used to borrowing

Thank you for giving us some useful advice ________ how to deal ________ the problems．

A．on; with

B．about; to

C．to; about

D．with; of

Things made of plastic are usually ________, but they are ________ to get polluted．

A．cheap; easy

B．cheap; easier

C．cheaper; easy

D．cheaper; easier

All the club members ________ the floor when they heard someone ________ for help．

A．swept; were shouting

B．swept; shouted

C．were sweeping; shouting

D．were sweeping; shouted

A fridge is used to keep food which goes ________ very ________．

A．badly; quick

B．bad; quickly

C．badly; slow

D．bad; slowly

There is ________ with your computer．Why not have it ________?

A．nothing wrong; repaired

B．nothing wrong; repair

C．something wrong; to repair

D．something wrong; repaired

We knew little about Shu-How Lin, a basketball player from New York Knicks, ________ we watched the basketball matches in NBA．

A．until

B．if

C．so

D．because

The math problem is ________ difficult and ________ of them can work it out．

A．too much; a few

B．much too; a few

C．too much; few

D．much too; few