The police, after searching, concluded that the thief must in through the window
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The police, after searching, concluded that the thief must______ in through the window and______ the silver while the family was asleep.
A.come; steal
B.have come; have stolen
C.have come; stole
D.have come; stolen
试题答案
D
musthavecome用于对过去发生的情形所做出的肯定推断。 第二空只选stolen, 是因为must have come 和 must have stolen 由and 连接, 可以省 去第二个must have, 而不影响理解。