---You look excited! ---I ________ the expensive dictionary that I left in the library yesterday.
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A
am finding
B
found
C
have found
D
had found
推荐题目
Three fourth of the homework _______ today .
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A
has finished
B
has been finished
C
have finished
D
have been finished
--Has the train arrived yet?---No, it ought to ___ twenty minutes ago.
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A
arrive
B
have arrived
C
be arriving
D
be arrive