Thequestionthatpuzzledthemisth

The question that puzzled them is ____ they can get rid of the air pollution in the area.

A．how is it that

B．that is how

C．what is that

D．how it is that

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相关试题

There is no doubt _______international cooperation is the key to dealing with cyber crime.

A．then

B．that

C． wheather

D．this

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---They are quiet，aren’t they?
---Yes. They are accustomed ________at meals.

A．to talk

B．to not talk

C．to talking

D．to not talking

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He risked __________ his job to see me off.

A．Losing

B．to risk

C．being lost

D．Lost

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He is a strict but kind teacher, ___is always trying to make his classes __ and interesting .

A．one ; living

B．one who; lively

C．he ; lovely

D．he who; live

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I haven’t seen ________Maggie since I came here.

A．as lovely a girl as	B．so a lovely girl as
C．girl as lovely as	D．as a lovely girl as

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