Question

The teacher required that no one ________ late for class．

[　　]

A．

be

B．

must be

C．

should have been

D．

was

Answer 1

答案：A
解析：

动词demand，require，suggest，insist，advise，order等后接宾语从句时，从句中谓语动词应使用虚拟语气，即“should＋动词原形(do/be done)”，should可省略。