—Believe it or not! I should get my lost wallet back after I left it in the taxi this morning.—Couldn’t agree more! You know, someone _______ it. There are still good persons in Chongqing.
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A
can have taken
B
might have taken
C
should have taken
D
must have taken
推荐题目
7.Although the causes of cancer ____, we do not yet have any practical way to prevent it.  
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A
are being uncovered
B
have been uncovering
C
are uncovering
D
have uncovered