— do you clean your school reading room, Jack?— Twice a day._刷题宝

题干

— do you clean your school reading room, Jack?

— Twice a day.

A：How much

B：How long

C：How often

D：How many

上一题下一题 0.0难度选择题更新时间:2019-09-24 11:25:08

答案(点此获取答案解析）

C

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