来自李训涛的问题
Thenumberofseniorhighschoolstudentsisincreasing...Thenumberofseniorhighschoolstudentsisincreasing,asismentionedabove.请问这个句子后面的部分asismentionedabove为什么没有it?
Thenumberofseniorhighschoolstudentsisincreasing...
Thenumberofseniorhighschoolstudentsisincreasing,asismentionedabove.
请问这个句子后面的部分asismentionedabove为什么没有it?

