There ______ great changes in our hometown in the past fifteen years.
#41872
A
has been
B
have been
C
was
D
were
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He ________this new computer since last week. It is birthday present.
#40145
A
has bought
B
bought
C
has had
D
will buy
John ______ an NBA playoff game on TV now.
#38302
A
watches
B
watched
C
will watch
D
is watching