问题补充：
—I don’t know how to pronounce this word. Can you help me?
—Sorry, I don’t know, either. Let’s in my dictionary right now.
A. look it up
B. look up it
C. look them up
D. look up them
答案：
(答案→)A. look it up
B. look up it
C. look them up
D. look up them
解析：句意：我不知道怎么读这个单词，你能帮我吗？对不起，我也不知道，我们现在去查字典吧。Look up查阅；是动词加副词构成的短语，当后面的宾语是名词时，可放在副词后面，也可放在动词和副词中间；但当宾语是代词时，只能放在动词和副词中间.句中，it指代前面的word,放在中间故选A
