问题补充:
Id like to take of this opportunity to thank you all for your cooperation.
A. profit
B. benefit
C. advantage
D. interests
答案:
A. profit
B. benefit
(答案→)C. advantage
D. interests
解析:take advantage of(=make use of sth. for ones own benefit)利用:take advantage of my ignorance(利用我的无知)。