题目内容：

I do not know what I should do.（同义句） He studied harder so that he could catch up with others.
I am in great need of your help.(同义句）

优质解答

I don't know what to do
He studied harder to catch up with others.
I need your help very much
）

追问：

谢谢，你的英语好好！！good 真棒，可以告诉我一些学英语的诀窍吗？我英语特差！