问题
选择题
— ____ you work out the math problem?
— No, I _____.[ ]
A. Do, can't
B. Can, mustn't
C. Can, can't
D. Can't, must
答案
答案：C
搜题请搜索小程序“爱下问搜题”
— ____ you work out the math problem?
— No, I _____.[ ]
A. Do, can't
B. Can, mustn't
C. Can, can't
D. Can't, must
答案：C