Great changes ______ in the city and a lot of buildings ______.
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A
have taken place, have been set up
B
have been taken place, have been set up
C
were taken place, were set up
D
have taken place, set up
推荐题目
He _____ play the piano since he was young. He is very famous now.
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A
has could
B
has been able to
C
could
D
was able to
--- What’s your brother? ---He _______ a teacher, but now he is a doctor.
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A
used to be
B
was used to
C
use to be
D
is used to be