Question

--- Daniel must have lost his job in that unemployment crisis, __________he? --- I don’t think ..

--- 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

A

考查反义问句，前面的句子用must have done，反义问句要看有没有过去时间，有就用过去时，没有就用现在完成时，这句话时间是in that unemployment crisis在那场就业危机中，所以用过去时。选A。