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-----I wish I _____ go into space some day.

----- I hope your dream _____ true.

A. could , will come

B. can , came

C. can , will come

----Do you know how the accident _______?

----Sorry, I don’t know.

A. come out

B. come into being

C. come about

The river has become much ______ than before because of the waste water.

A. dirty B. dirtier C. Dirtiest

I’ m sure I can make myself _____, because I have improved my English greatly.

A. understand B. understanding C. Understood

Everyone knows that a desk is made __ wood and paper is made__ wood too.

A. of , of B. of , from C. from, of

Wang Fan , could you give us ______ on how to learn English _______?\

A. some advices, good

B. any advices , well

C. some advice , well

-- Mum, must I stay there the whole day?

-- No, you ______ . You ______ come back after lunch, if you like.

A. mustn't; can

B. needn't; must

C. needn't; may

— How much did you pay for the new car?

— It_____ me more than ￥300,000.

A. cost B. spent C. Made

—This physics problem is too difficult. Can you show me _____, Wang Li?

—Sure.

A. what to work it out

B. what to work out it

C. how to work it out

_____ of the population in China ____ hardly to say.

A. A number , is

B. The number ,are

C. The number , is