题目内容
Mr.Smith as well as two of his students ________ the experiment with care at the moment.
A.is doing B.are doing C.does D.do
A
【解析】句意:史密斯先生和他的两个学生此刻正在认真地做实验。as well as“和;也”,此处连接两个并列主语,谓语动词的数应与前面的主语Mr.Smith 保持一致。根据时间状语at the moment可知应用现在进行时,故A项正确。
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