The number of the people who own cars ______since 1990.
#101739
A
is increased
B
are increased
C
have been increasing
D
has been increasing
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Great changes in every field _____ in the last ten years. 
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A
take place
B
took place
C
have taken placed
D
had taken place
  I don’t think Jim saw me ; he ______ into space .
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A
just stared
B
was just staring
C
has just stared
D
had just stared
By the end of last month, ten primary schools _________ with the help of Project Hope. 
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A
had set up
B
had been set up
C
was set up
D
set up