do not make any noise while the students---to the classA.are listening B.listened C.have listened D.had listened
人气:296 ℃ 时间:2019-12-15 10:44:13
解答
A
因为此时间状语从句的连接词为while
所以从句只能为进行时或主系表结构
所以只能选A
只要记住限定的范围就可以了
要加分啊~给分,我有急用!
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