i go to ask mary ()me.1,helping 2,help3,to help 4,helps.填什么?为什么

问题描述:

i go to ask mary ()me.1,helping 2,help3,to help 4,helps.填什么?为什么

选3
固定搭配ask sb to do sth.

to help
ask...to 要求某人做某事,用不定式

3,ask sb to do sth 要求某人做某事,类似的还有tell sb to do sth
否定用 ask sb not to do sth