题目内容
19.Mrs.Smith is busy.She is doing her housework now.(合并成一句话)Mrs.Smith isbusy withher housework now.
分析 史密斯夫人忙着,她正在做家务活.
史密斯夫人正忙于她的家务活.
解答 答案:busy with.根据句意,忙于做某事可以用be busy with sth,故答案是busy with
点评 熟练掌握常用句型和固定短语以及常用词汇,根据句意和语法要求作出正确解答.
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