题目内容
11.It's believed that pollutionremains (remain) one of the biggest problems for Chinese government.分析 人民相信污染仍然是中国政府的最大的问题之一.
解答 答案:remains.根据句意这里是说客观事实应用一般现在时,故It's是It is的缩写,前后时态呼应,从句的主语是pollution是不可数名词,故用remain的三单形式remains.
点评 这里需要注意It's是什么的缩写,然后确定时态
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