常用介词短语及其用法答:常用的介词可以分为4类:简单介词(即基本介词,如about, in, on, with等)、合成介词(如into, out of , without等)、成语介词(如according to, apart from, for the sake of等)和分词介词(如concerning, including, respecting等) 一、常用的介词 about,above,across,after,against,around,at,before,behind,bel...