did you help them ____their room
A to clean
B cleans
C cleaning
人气：134 ℃ 时间：2020-02-04 23:34:32
解答
选A
翻译：你帮他们打扫屋子了吗?
help sb do sth 或 help sb to do sth都是固定用法,表示帮某人做某事,这里选用后者.
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