来源：学生作业帮 编辑：神马作文网作业帮 分类：英语作业 时间：2024/11/13 07:00:09
一些英语的语法问题.急非常急!
on weekend,I clean my room ,play piano ,and do homework
我想问一下,在ciean,piay,do后面要加ing或者ed吗?
不需要,这是一般现在时
比较,last weekend,I cleaned my room ,played the piano ,and did my homework.
I am cleaning my room now.
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