题目内容

【题目】Look！Half of the students ________ studying in the classroom right now.

A. is B. are C. was D. were

【答案】B

【解析】

句意：看！一半的学生现在在教室里学习。由look和right now可知时态为现在进行时。排除C/D；“half of +名词”结构做主语，谓语动词的单复数，取决于后面名词的单复数。因为Half of the students后面的名词students是复数，因此谓语动词用are。故选B。

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