If you don't understand the words,you can ____in a dictionary.
问题描述：
If you don't understand the words,you can ____in a dictionary.
If you don't understand the words,you can ____in a dictionary.
A.look them up B.look up them C.look them for D.look at them
答
选A , look them up
查找.look up 代词放中间B 不行么不行up是副词代词放中间那什么时候放后面动词+介词的结构代词不用放在中间，如：look for, look after, aim at, work at, etc动词+代词+副词的结构，代词必须放在中间；名词则可以放在动词和副词之间，也可以放在动词加副词的后面。如：pick it up, pick a wallet up, pick up the wallet好的 谢谢