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
【小题1】The rain coat is used for the rain .
【小题2】The book educating teenagers
【小题3】 my home , when you have time .
【小题4】You are supposed to when you meet someone for the first time in China .
【小题5】He studies hard go to a good university .keeping out
网友回答
(答案→)keeping out
解析：
【小题1】此题考查固定结构be used for doing sth表达用来做某事
【小题2】此题考查固定结构be aimed at表示目的是
【小题3】此题考查固定结构drop by+地点表示顺便拜访某人
【小题4】此题考查shake hands表示握手
【小题5】此题考查in order to do sth表示目的是