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Unless ________ to answer questions, the pupils won't talk in Mrs Smith's class.A．askingB

题目简介

Unless ________ to answer questions, the pupils won't talk in Mrs Smith's class.A．askingB

题目详情

Unless ________ to answer questions, the pupils won't talk in Mrs Smith's class.

A．asking	B．asked
C．being asked	D．having asked

题型：单选题难度：中档来源：不详

答案

B

B 连词省略句。该句中的unless引导的条件状语从句的主语是the pupils，与主句的主语相同，the pupils与ask之间是被动关系，应该使用过去分词的形式。故B正确。

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