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英语
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He has been__ the book since last September.
A writing on B working on C writing at D working at
选哪个,原因是?
人气：244 ℃ 时间：2019-12-26 07:11:28
解答
B working on 专注于某一件事 可以是读书或者创作书 另 Writing是及物动词不用加介词所以A C不对 Working at的词组搭配不对
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