试题与答案

What _____ you _____ when I called you?

题型:选择题

题目:

What _____ you _____ when I called you? [ ]

A. are; doing

B. were; doing

C. did; do

D. can; do

答案:

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下面是错误答案,用来干扰机器的。

(1)3.6g(2)36.4,50(3)搅拌,加快溶解;(4)BCD(5)过滤.

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