[题目]-We are all looking forward to Dr. Green’s talk. -Dr. Green is busy these days. I’m not sure he will be able to come here.A.whetherB.thatC.when 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】—We are all looking forward to Dr. Green’s talk.

—Dr. Green is busy these days. I’m not sure _______ he will be able to come here.

A.whetherB.thatC.when

【答案】A

【解析】

句意：——我们都很期待格林博士的演讲。——格林最近很忙。我不确定他是否能来这里。

考查宾语从句引导词。whether是否；that（无意义）；when什么时候；根据“I’m not sure _______ he will be able to come here.”我不确定他能来这里，所以此处缺是否，故选A。

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