.(1)Mr.Johnson must have come back yesterday,_______?

.(1)Mr.Johnson must have come back yesterday,_______?
(2)He must have waited here for a long time,_______?
A.hasn’t he B.haven’t he C.mustn’t he D.didn’t he
请给出答案并说明理由

sd2042 1年前已收到1个回答举报

xiaojinsm 幼苗

共回答了19个问题采纳率：84.2% 举报

1-D
2-A
在这种句型中,根据must后的词判断的.第一题因为有yesterday,所有用一般过去时,我们的原题,可以保证.
第二题,有wait for a long time,应该选用完成时态.

1年前

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