题目内容：

短语是词和什么语法组成

优质解答

1. 短语动词的分类(1)动词＋介词常见的有look for, look after, ask for, laugh at, hear of 等.这类短语动词的宾语只能放在介词后.如：Don’t laugh at others.Tom asked his parents for a bike.(2)动词＋副词常见...