【Thechildrencooperatedwiththeirteachersinkeepingtheirclassroomclean.这句话中的inkeeping】
2021-09-19 34次 反馈错误 加入收藏 正确率 : 100%
题目内容：
The children cooperated with their teachers in keeping their classroom clean.这句话中的in keeping
优质解答
孩子们协助老师保持教室清洁
cooperate with sb in doing sth 是词组 协助某人在某事上
本题链接：
