We should do what we can (to help) them with their lessons.

问题描述:

We should do what we can (to help) them with their lessons.
启动中学作业本上的,to help,为什么不是help,

We should do what we can (to help) them with their lessons.=We should do what we can do(to help) them with their lessons.这略了动词do,这样就清楚了吧