问题补充:
He must have finished the work yesterday, he ?
A. mustn
B. haven
C. didn
D. hasn
答案:
A. mustn
B. haven
(答案→)C. didn
D. hasn
解析:当陈述部分是must\may have done sth.时,如果有表示过去的时间状语,就用过去时来反问;如果没有表示过去的时间状语,就用现在完成时来反问.
时间:2023-09-11 12:31:13
He must have finished the work yesterday, he ?
A. mustn
B. haven
C. didn
D. hasn
A. mustn
B. haven
(答案→)C. didn
D. hasn
解析:当陈述部分是must\may have done sth.时,如果有表示过去的时间状语,就用过去时来反问;如果没有表示过去的时间状语,就用现在完成时来反问.
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