根据句意，从下面的方框中选择适当的短语，有些词语需要变形。

drop by , in order to , shake hands  , aim at , keep out

The rain coat is used for ___________ the rain .
The book __________ educating teenagers
___________ my home , when you have time .
You are supposed to ________ when you meet someone for the first time in China .
He studies hard ________ go to a good university .