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Air pollution together with littering ____ many problems in our large industrial

2024-03-12 13:13:15 来源: 用户: 
【#Air pollution together with littering ____ many problems in our large industrial#】

1、A

2、答案A.

3、根据句中的时间状语today,可排除C;横线处缺少谓语动词,而causing是非谓语动词,可排除D.当主语为单数名词或代词,尽管后面跟有with,together with,except,but,like,as well as,rather than,more than,no less than,besides,including等引起的短语,谓语动词仍用单数形式;若主语为复数,谓语用复数形式.在本题中主语是air pollution,是单数的名词,故谓语动词使用单数的形式,排除B.故答案选A.

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