题目内容

【题目】This class ________ now. Miss Gao teaches them.

A. are studying B. is studying

C. be studying D. studying

【答案】A

【解析】试题分析:选择B的同学要注意, 当这种概念名词当 讲的时候要做复数处理.类似的还有: the police are running after the thief

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