题干
—Excuse me, can I smoke here?
—No, ____________ .
A：you must
B：you'd not better
C：you can
D：you'd better not
答案(点此获取答案解析）
D
—Excuse me, can I smoke here?
—No, ____________ .
A：you must
B：you'd not better
C：you can
D：you'd better not
