题目内容
【题目】As it ______ that more and more cars use clean energy, the air is becoming cleaner in many cities across China.
A. encouragesB. will encourageC. is encouragedD. will be encouraged
【答案】C
【解析】
句意:当越来越多的车被鼓励使用清洁能源,中国很多城市的空气都变得更清新了。考查被动语态。这里是固定句式it is+ 过去分词 that从句,被鼓励做某事,故选C
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