When the teacher speaks, we have to keep quiet, ?A.don’t weB.mustn’t heC.haven’t weD.doesn’t he-英语

题目简介

When the teacher speaks, we have to keep quiet, ?A.don’t weB.mustn’t heC.haven’t weD.doesn’t he-英语

题目详情


When the teacher speaks, we have to keep quiet,           ?
A.don’t weB.mustn’t heC.haven’t weD.doesn’t he
题型:单选题难度:偏易来源:不详

答案

A

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