to do和only to do的用法和区别.

to do和only to do的用法和区别. doing和to do的用法区别. only doing和only to do 的区别 just to do 和 only to do mean to do 和mean doing 的区别和用法? 请问在用法上to do 和 doing 和 do 的用法区别 be going to do 和be doing用法的区别? advice用法加to do和加doing的区别 try to do & try doing的用法和区别? try to do 和try doing 的用法区别 stop to do 与 stop doing 的 用法 和 区别 expect to do 和expect sb.to do sth.的用法区别是什么?