改错:What does he work hard?Maths and english.
只有一处要改
人气：302 ℃ 时间：2020-01-25 20:26:07
解答
What does he work hard at?Math and English.现在式What does he work hard at?Math or English?What did he work hard at?Math and English.过去式What did he work hard at?Math or English?
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