The silence in the dark building was scaring. No sound and voice heard at that moment. A.

问题补充：

The silence in the dark building was scaring. No sound and voice heard at that moment.

A. Were

B. Was

C. Is

D. are

答案：

A. Were

(答案→)B. Was

C. Is

D. are

解析：考查时态和主谓一致。No/every/each 单数and +no/every/each单数 作主语时，谓语动词用单数。由前面的句子：The silence in the dark building was scaring.可知本题是一般过去时，句意：黑暗大楼里面的安静是令人害怕的，当时听不见任何声音。故B正确。