一道英语题:He is busy working ________ a book ________ a doctor.
空格处填写适当的介词。请帮忙。谢谢!
对不起,上面的答案不对。 He is busy working on a book for a doctor. 他在忙着为一个医生写书。 He is busy working on a book on how to become a doctor. 他在忙着写一本关于怎么当医生的书。 可以用 He is busy working on a book about a doctor. 他在忙着写一本有关一个医生的书。
He is busy working ___on_____ a book ___for_____ a doctor work on (努力)致力于,干、做 比较work at 做,干,没努力之意; a book for a doctor,一本为(将来成为医生)的书;
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答:he is busy working on a book as a doctor.详情>>
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