Bill is in the classroom.doing 什么homework
Bill is in the classroom.doing 什么homework
请说明理由
请说明理由
英语人气：908 ℃时间：2019-11-17 05:49:11
优质解答
his.homework前面不用加介词,这里不加词也可以读通,所以就加上一个定冠词了.
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