问题补充：
It didn take long for them to the cheat，who pretended to be an expert in this field.
A. look through
B. go through
C. live through
D. see through
答案：
A. look through
B. go through
C. live through
(答案→)D. see through
解析：考察动词短语，see through“看穿, 识破”。
