Our teacher was seen go into the office just now改错 ___a___.__b___.__c__.__d__

问题描述:

Our teacher was seen go into the office just now改错 ___a___.__b___.__c__.__d__
麻烦详细讲解下.a,b,c,d为四个选项.
see不是只有doing,to

go----to go为什么。