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Call the taxi, ________ you will miss the train．

A．and

B．though

C．because

D．or

It’s a ________ to treat the animals like that．

A．shame

B．problem

C．pity

D．question

Jack likes to ________ others but never writes to them．

A．hear

B．hear of

C．hear about

D．hear from

－Which is more useful, biology of chemistry?

－I think ________ them are useful．

A．either of

B．none of

C．both of

D．all of

－May I go surfing alone this afternoon, dad?

－No, you________．It’s dangerous．

A．may not

B．can’t

C．needn’t

D．don’t

－Would you like to go to the concert with me?

－I’d love to, ________ I can’t．I have a lot of homework to do．

A．or

B．but

C．so

D．and

I want to know ________ the day after tomorrow．

A．what he will do

B．what will he do

C．what he did

D．what did he do

I bought CDs for my friend and they ________ me ＄30．

A．spent

B．paid

C．cost

D．used

－Did you have any problems in London?

－Yes, ________ Chinese food like rice, noodles and dumplings．

A．find

B．found

C．finding

D．to find

－Would you mind watering the flowers for me?

－________．I have to go to the post office．

A．Not at all

B．Never mind

C．No, please

D．Sorry, I can’t．