I always help my mother ________ the floor.A. cleans B. cleaning C. cleaned D. clean

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I always help my mother ________ the floor.A. cleans B. cleaning C. cleaned D. clean

I always help my mother ________ the floor.A. cleans B. cleaning C. cleaned D. clean
I always help my mother ________ the floor.
A. cleans B. cleaning C. cleaned D. clean

I always help my mother ________ the floor.A. cleans B. cleaning C. cleaned D. clean
答案D helpsb.(to)do sth.为一固定短语,意思是“帮助某人做某事”.查看原帖>>