展期后的利息，累计贷款期限不足6个月的，自展期日起，按当日挂牌的()个月贷款利率计息。
A.3
B.6
C.12
D.15
参考答案：B
Sugar is usually sold by _______ weight, and eggs are sometimes sold by ______ dozen. [ ]
A. / , the
B. / , a
C. the, a
D. the, the
— Do I have to come back tomorrow?
— Yes, you _____. [ ]
A. can
B. may
C. must
D. should
