---Mum, can I go to the zoo with Linda? ---When your homework _______, you can. 
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A
is finished
B
was finished
C
finishes
D
finished
推荐题目
The dictionary mustn’t ________ from the library.
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A
take away
B
taken away
C
are taken away
D
be taken away
No one knows how the huge rocks   and ___ without our modern machines eight hundred years ago.
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A
are cut; moved
B
were cut; move
C
are cut; moving
D
were cut; moved