Don't worry. He will return ____. [ ] A._爱下问搜题

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问题选择题

Don't worry. He will return ____. [ ]

A. before long

B. long before

C. long long ago

D. long ago

答案

答案：A

填空题

若全集U为实数集，Q为有理数集，则无理数集可记为______．

选择题

The school advisers help you talk through your problem but they don't give you any direct _____. [ ]

A. solution

B. target

C. measure

D. function