问题
选择题
When you meet some new words, you can ____ in your dictionary.
A．look it up
B．look up it
C．look them up
D．look up them
答案
答案：C
本题的含义是当你遇到一些新的单词，你可以在字典中查询它们，look up表示查询，后跟某物，若是名词在up前后都对，若是代词，只能放在up之前，本题为代词，代替前句的复数单词words，故用them。