—What’s that noise?—Oh I forgot to tell you. The neighbors for a party.A. prepareB. are

问题补充：

—What’s that noise?

—Oh, I forgot to tell you. The neighbors for a party.

A. prepare

B. are preparing

C. will prepare

D. have prepared

答案：

A. prepare

(答案→)B. are preparing

C. will prepare

D. have prepared

解析：考查时态。句意为“那边是什么噪声？”“我忘记告诉你了。邻居正在准备聚会”。根据上边的问句，可知听到的声音是人们正在组织聚会，用现在进行时，故选B。