Great changes ___ in the city, and a lot of factories ___.
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A
have been taken place, have been set up
B
have taken place, have been set up
C
have taken place, have set up
D
were taken place, were set up
推荐题目
 After school we went to the reading-room to do some reading, only to be told that it _____.
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A
was decorated
B
had decorated
C
had been decorating
D
was being decorated
By the 1920s, Howard Carter ____ an explorer.
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A
has become
B
had become
C
became
D
would become
To his disappointment, the opinion he had stuck              out wrong.
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A
to turn
B
to turning
C
to turned
D
to be turned