Don't all speak at once ________,please.(1994)A.Each at one timeB.One by one timeC.One for each tineD.One at a time说明原因
问题描述：
Don't all speak at once ________,please.(1994)
A.Each at one time
B.One by one time
C.One for each tine
D.One at a time
说明原因
答
D 原因不详
答
MS选D
A选项应该去掉介词at
B选项time多余
Sorry，C选项不太清楚
答
D,一次说一个
at one time 曾经 at a time,一次,其他的就不用解释啦
答
each at a time 就是一次一个，一个一个来