It is thoutful of you to play CDs for us 分析这个句子的成分,以及问一下,这里的

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/09 08:46:43

It is thoutful of you to play CDs for us 分析这个句子的成分,以及问一下,这里的is可以换用was么?
It is thoutful of you to play CDs for us
分析这个句子的成分,以及问一下,这里的is可以换用was么?
说明:像"It is important for you to exercise everyday"这个句子可以还原成"To exercise everyday is important for you"
那么最上面那句"It is thoutful of you to play CDs for us"可以如何还原呢?
注意:is可以换成was吗?

TO play for us是不定式短语,结构简单呀.
注意的是 Thoughtful后面接OF.OF这种用法这里也不少人提.
To exercise IS 结构完全正确.
原句所谓还原就不行了,好像没有诚意似的.语法上倒似说得过去.

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