what we should do is后面到底加ing还是to do?

问题描述:

what we should do is后面到底加ing还是to do?

应该是to do 吧

is 后面通常接 to do ...
但 to 很常被省略,比如
What we should do is to buy another computer

What we should do is buy another computer
我是加拿大人,前英语老师.