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题目
题型:不详难度:来源:
Unless ___ to speak, you should remain silent at the conference.
A.invitedB.invitingC.being invitedD.having invited

答案
A
解析

试题分析:原句意思是,除非你被邀请发言,否则你应该在会议上保持安静。连词后可以直接加现在或过去分词,由主动被动决定.由于"你"是被邀请的,所以应该用过去分词,故选A。
点评:连词后可以直接加现在或过去分词,由主动被动决定.由于"你"是被邀请的,所以应该用过去分词。
核心考点
试题【 Unless ___ to speak, you should remain silent at the conference.A.invitedB.invi】;主要考察你对现在分词等知识点的理解。[详细]
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题型:不详难度:| 查看答案
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