My friends often dress up ---costumes at Halloween.

问题描述:

My friends often dress up ___costumes at Halloween.
线上是应该填“in”还是不填.
1个回答 分类:英语 2014-10-11

问题解答:

我来补答
in
dress up整体可以看做一个不及物动词,可以有一些变化,如 dress sb.up,但up之后不可以再接宾语.
 
 
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