问题
选择题
—Could you please come to the museum with me this afternoon?
—Sorry, I_____. I have to take a piano lesson at 2 p.m. [ ]
A. couldn't
B. mustn't
C. can't
D. needn't
答案
答案:C
—Could you please come to the museum with me this afternoon?
—Sorry, I_____. I have to take a piano lesson at 2 p.m. [ ]
A. couldn't
B. mustn't
C. can't
D. needn't
答案:C