after he finished to do his homework,he left the classroom改错

after he finished to do his homework,he left the classroom改错
英语人气:320 ℃时间:2020-03-29 15:24:50
优质解答
to do 改为 doing
固定搭配:finish doing sth 完成做某事
句意是:他做完家庭作业后离开了教室.
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