Question

【题目】It is imperative that computer passwords _____ kept confidential.

A．were B．be C．being D．had been

Answer 1

【答案】B

【解析】句意：电脑密码被保密是必要的。本句是It is + 形容词 + that从句，形容词是imperative，故从句里谓语动词用should+动词原形，should常省略。故选B项。