We have stayed at this school for _____.Which of the following choices is wrong

问题描述:

We have stayed at this school for _____.Which of the following choices is wrong
A.two and a half years B.two years and half a year
C.two years and half a year D.both A and B

选C.题目说“Which of the following choices is wrong”--“哪个选项是错误的”
“两年半” A,B两种表达都没错.