My grandfather keeps healthy by ______ for half an hour every morning.A．working_刷题宝

题干

My grandfather keeps healthy by ______ for half an hour every morning.

A．working out

B．acting out

C．taking out

D．looking out

上一题下一题 0.64难度单项选择更新时间:2012-05-16 01:47:39

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