I could have worked out to stay in shape, but the math classes and exercises ___

题干

I could have worked out to stay in shape, but the math classes and exercises ___________ all my spare time.

A．take up

B．have taken up

C．took up

D．are taking up

上一题下一题 0.85难度单项选择更新时间:2018-06-04 01:11:24

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