Theteacheraskedus______.A.WhatthebadeffectofpollutionareB.Whatweretheb

发布时间：2020-08-14 02:44:19

The teacher asked us ______.A.What the bad effect of pollution areB.What were the bad effect of pollutionC.What the bad effect of pollution were

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C解析：此题重点考查宾语从句的时态和语序问题，无论哪种句式结构充当宾语从句都要用陈述句语序，从句的时态要和主句的时态保持一致。因主句的谓语动词是过去式从句的谓语动词也要用相应的过去时态。
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