问题
选择题
—"Can you help me with my math this Sunday?"
—"Sorry, I ______." [ ]
A. can't
B. don't
C. am not
D. can
答案
答案:A
—"Can you help me with my math this Sunday?"
—"Sorry, I ______." [ ]
A. can't
B. don't
C. am not
D. can
答案:A