I couldn't help ____.A.to cry B.crying

I couldn't help ____.A.to cry B.crying I want to _____. A.cry B.crying C.cries I couldn't help but cry.为什么后面不用不定式to cry呢? I couldn't help crying out _____the bad news Cry,not I want to,but couldn't help it如题 11. It's no good ____ over spilt milk . A. to cry B. crying I couldn't help—— about what had happened.A.to think B.think I couldn't find another way ____ the problem A to work out B yes.every time i see it,i can't help cry.还是用crying I couldn`t help I couldn't help we couldn't help crying when we heard that ten people were b