—What were you doing when I rang you this morning?

—I was occupied ______ the housework and kept my son occupied______ his homework.

A.a(chǎn)t;doing B.with;doing  C.a(chǎn)t;to do D.with;to do

B


解析:

be occupied with sth.和be occupied (in) doing sth.的意思都是“忙于做某事”。

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