all that we can do is to do sth.不是缺谓语吗?that we can do 做all的定语,如果省去定语就是all is to do sth,is to do 是非谓语,请问这个句子为什么正确?

can we do that this is all that I can do for should we all do that? all we can to 很常见的说法是：We should do all we can to help those who are in trouble.为什么不是：all we can do to help..all that we can to help..all that we can do to help..what we can to help..what we can do to help.. I am sure that I will do all what I can to do love you All I can do is I still remember all that shaved in my heart.We all can not go bake. I can do that we can do,这句话有错吗!是什么句型, all that we can do is to do sth.不是缺谓语吗?that we can do 做all的定语,如果省去定语就是all is to do sth,is to do 是非谓语,请问这个句子为什么正确? You do better than we have e___.Can I have a p____taken with you?Did the talk that the woman gave i____you all? As your good friend,I will do ________ help you.A.that I can to B.what I can toC.all that I can D.what I can All that I can do is to wait here.为什么用that We can not guarantee that all together forever.However,if I may.I would like to. 英语作文We Can All Do It I am a sham ,I cant really do all things that i said i can do for you请 翻译 英语翻译I ever believed that if I got in trouble,you wii appeared and we can overcome all storm togeter.but I do not think we are defeated by ourself Here we all do it like that I will do all that I can to help you 这个句子中that 做什I will do all that I can to help you这个句子中that 做什么成分?为什么can后要加to?