是there be sth to be done还是there be sth being done?
there be sth in doing和there be sth being done有什么区别?谢
there are many advantages to purchasing things online.怎么成了to doing了？
人气：431 ℃ 时间：2019-10-20 20:15:50
解答
to be done是将要被做的意思,而being done是正在被做的意思,时间不一样.
to 有两种意思,一种是动词不定式,一种是介词,后面加动词的ing形式.
而你补充的是to作介词的用法.
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