Don’t all speak at once! , please.A．Each at one timeB．One by one timeC．One for each timeD．One at a time 题目和参考答案——青夏教育精英家教网——

题目内容

Don’t all speak at once! ______ , please.

A．Each at one time

B．One by one time

C．One for each time

D．One at a time

D

解析试题分析：解题干句（信息句）的意思是关键。Don't all speak at once !的意思是：不要都同时讲。由此，根据提示句的含义及备选答案，我们可以判断后面的意思应该是：请每次一个。上面四个备选答案中One at a time 的意思是每次一个。at a time是“一次”的意思。所以选D。
考点：考查词组辨析

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