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英语
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I spent half an hour___my homework.Afinish doing Bto finish doing Cfinishing to do Dfinishing doing
人气：446 ℃ 时间：2019-08-17 19:28:44
解答
spend some time doing sth.花时间做某事.
finish doing sth.完成了某事.
选Dfinishing doing
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