She was busy ___when we got to her home.A.to cook B.for cooking C.of cooking D.cooking
望好心人能顺便说明解题原因,
人气：170 ℃ 时间：2020-03-27 16:27:29
解答
D be busy (in)doing sth 忙于做某事（in可以省略）
当我们到家时她正忙着做饭
或者也可以用be busy with sth ,忙于某事
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