Listen! Someone in the next room.A. cryB. crysC. is cryingD. was crying

问题补充：

Listen! Someone in the next room.

A. cry

B. crys

C. is crying

D. was crying

答案：

A. cry

B. crys

(答案→)C. is crying

D. was crying

解析：考察时态及主谓一致，句意：听有人正在隔壁哭。结合语境可知本句描述的是正在进行的动作，故用现在进行时态。Someone做主语时，谓语动词用单数，故选C。