题目内容

Air pollution can ________ humans by causing sore eyes and respiratory problems, especially in children and the elderly．

[　　]

A．effect

B．offer

C．affect

D．effort

答案：C
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相关题目

People like to go swimming in ________ because it is hot．

[　　]

A．spring

B．summer

C．autumn

D．winter

You must drive ________ next time, or there may be another accident．

[　　]

A．careful

B．mot careful

C．carefully

D．more carefully

Our school will become ________．

[　　]

A．nicely

B．pretty

C．beautiful

D．lightly

Scientists say that there are hardly ________ things on the moon．

[　　]

A．lifeless

B．alive

C．living

D．lively

If there are more trees, the amount of oxygen in the atmosphere will be ________．

[　　]

A．less

B．fewer

C．smaller

D．greater

I enjoy playing chess ________ it takes me a lot of time．

[　　]

A．unless

B．because

C．when

D．though

All three students thought that their visits were useful ________．

[　　]

A．by the way

B．on the way

C．in some way

D．throughout the way

Aunt Polly wants the work ________ properly．I'm the only one who can do it right．

[　　]

A．do

B．be done

C．to be done

D．to do

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