--What’s that terrible noise?The neighbors for a party.A. are preparingB. prep

问题补充：

----- What’s that terrible noise?

----- The neighbors for a party.

A. are preparing

B. prepare

C. have prepared

D. will prepare

答案：

(答案→)A. are preparing

B. prepare

C. have prepared

D. will prepare

解析：考查时态，由问句可以知道动作正在发生，所以用进行时，句子意思“邻居正在准备宴会”