have to do 和have doing的区别

I have nothing to doI have no gf ,What can I do have do中的have是情态动词还是实意动词?have to do和have do?have do 请看以下的选择题,并告诉我答案和其它选项的错误之处---Why do you think she isn't speaking to us?---We_____something that upset her.She is just too sensitive.A,ought to do B,might have been doing C must have done D would doI aske have doing sth 和 have to do sth的区别 have to do 和have doing的区别 have doing和have to do谁正确？ have to do 和 have do 和 have doing有什么区别? have to do和must的区别 have sth to do Have nothing to do have to do have to do have to do sth have to do和must to do可互换吗? do you have to do this 和Have you to do this i must water the garden first.doi must water the garden first.do you have to water it now?第一句为什么可以不加have to .第二句要加 have sth.to do和have sth.to be down和have sth.down是have sth.to do和have sth.to be down意思相同,还是have sth.to be down和have sth.down相同? have anything to do with 和have nothing to do with