在初中完形填空题中遇到有介词in,on,with,at,for等等这些词应该怎么区分...答:答案:on。表示在水的上面,初中英语介词的用法一、介词按其构成可分为: 1. 简单介词 at, in, on, to, since, until 等。如He's worked there since 1998.2. 复合介词 into, onto, out of 等。如: She is out of school. 3. 二重介词 from under, from behind, from out of, ...