问题
选择题
—— May I leave the office before 5 o’clock in the afternoon?
—— No, I’m afraid you＿＿＿＿＿＿＿.
A．needn’t
B．shouldn’t
C．mustn't
D．won’t
答案
答案：C
may表示“允许”。回答may引起的问句，肯定式一般用 Yes, of course.／Yes, certainly.／Sure.／Yes, you may.否定式用No, you mustn’t.
