Pollution has become a serious problem in almost all the big cities of the wo

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问题 Pollution has become a serious problem in almost all the big cities of the world. City people are becoming more and more worried about how they can (11) pollution. They are also concerned about whether the government is doing enough to (12) the e [br]

选项

答案 protect

解析这里是动词不定式表示目的，意为“保护 (环境) ”。

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Pollution has become a serious problem in almost all the big cities of the wo

Accordingtothepassage,______causesthemostseriousproblem.[br]Whydoop

Accordingtothepassage,______causesthemostseriousproblem.[br]"Controve

Wehavegotto______anewwaytosolvethisproblem.A、tellaboutB、putoutC、t

His______(ultimately)goalistobecomeasuperstar.ultimate本题考查副词与形容词之间的转换。该

Asitwasalmosttimefortheflight,allthepassengersgot______theplane.A、

_____Iadmitthattheproblemsaredifficult,Idon’tagreethattheycan’tbe

Weareaserioussellerandlookingforwardto(build0______longandreliableb

Asitwasalmosttimefortheflight,allthepassengersgot______theplane.A、ar

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