35.Air pollution, together with littering, many problems in our large industrial cities today. A.causes B.cause C.caused D.causing 查看更多

 

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Air pollution, together with littering, __________ many problems in our large industrial cities today.

[  ]

A.causes

B.cause

C.caused

D.causing

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Air pollution, together with littering, ____ many problems in our large industrial cities today.

A.causesB.causeC.causedD.causing

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Air pollution, together with littering, ____ many problems in our large industrial cities today.

A.causes

B.cause

C.caused

D.causing

 

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