-----What’s that terrible noise?---The neighbours for a party.A. have prepared.B. are

问题补充：

-----What’s that terrible noise?

-----The neighbours for a party.

A. have prepared.

B. are preparing.

C. was preparing.

D. will prepare.

答案：

A. have prepared.

(答案→)B. are preparing.

C. was preparing.

D. will prepare.

解析：考察时态,根据问句,那个可怕的噪音是什么?可知下文邻居正在准备一场聚会,最符合此时语境,故选B,现在进行时态.