问题
选择题
I _____ have been more than six years old when the accident happened.
[ ]
A. shouldn't
B. couldn't
C. mustn't
D. needn't
答案
答案：B
搜题请搜索小程序“爱下问搜题”
I _____ have been more than six years old when the accident happened.
[ ]
A. shouldn't
B. couldn't
C. mustn't
D. needn't
答案：B