题目内容
【题目】-What were you doing at 8:00 last night ?
-Oh, I was busy _________ my homework
A.do
B.doing
C.did
D.done
【答案】B
【解析】句意：——昨晚8点你在做什么？——哦，我在忙着做作业。be busy doing sth忙着做某事。故选B。
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题目内容
【题目】-What were you doing at 8:00 last night ?
-Oh, I was busy _________ my homework
A.do
B.doing
C.did
D.done
【答案】B
【解析】句意：——昨晚8点你在做什么？——哦，我在忙着做作业。be busy doing sth忙着做某事。故选B。