My uncle _____ go to work yesterday.A. d_爱下问搜题

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问题选择题

My uncle _____ go to work yesterday.

A. don't
B. didn't
C. aren't

答案

答案：B

选择题

Over the past 20 years, the Internet helped change our world in _____way or another for the better.

A．any

B．one

C．every

D．either

问答题简答题

抽气器的作用是什么？主、辅抽气器的作用有何不同？