中秋节一过，月饼价格马上跳水，其主要原因是 [ ]
A．供应量迅速减少
B．需求量迅速减少
C．供应量迅速增加
D．需求量迅速增加
答案：B
---Most hotels are very full today.
--- Don't worry! I have ______ a room already in the Changjiang Hotel.
A．bought
B．booked
C．visited
D．seen
There _____________ an English party next Saturday.[ ]
A. is
B. is going to have
C. will have
D. is going to be
