Question

—Daniel must have lost his job in that unemployment crisis,      he?

—I don’t think so. Yesterday I saw him working together with his colleagues.

A．didn’t

B．doesn’t

C．mustn’t

D．hasn’t

 

Answer 1

【答案】

A

【解析】当must表示推测时，其后反意疑问句部分的时态取决于实际时态而不是must后的形式; 本题中“失去工作”的动作发生在过去，因此用did来反问。