—What’s that terrible noise?—The neighborsfor a party.A. have preparedB. are preparingC. p

问题补充：

—What’s that terrible noise?

—The neighborsfor a party.

A. have prepared

B. are preparing

C. prepare

D. will prepare

答案：

A. have prepared

(答案→)B. are preparing

C. prepare

D. will prepare

解析：只有正在准备聚会才会发出那么大的噪音，所以要用现在进行时。