问题
选择题
—Did you tell your headmaster that the teachers and students had a number of ________ their lunch?
—Yes. He said he must solve this problem.
A. complains about
B. complaints of
C. complaints about
D complaints of
答案
答案：C
Complain为动词，complaint为名词，本题需要名词形式。Abut表示“关于”，所以本题选择C。