Jack doesn’t smoke now, but he ______________ for almost twenty years.
#101839
A
was smoking
B
smoked
C
has smoked
D
had smoked
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The central heating system of this office building is down and several workers ______ it right now.
#99933
A
had repaired
B
have repaired
C
repaired
D
are repairing
Jack as well as the other students who ______ sent abroad by the government ______ brought up in a small town.
#102269
A
were/was
B
was /was
C
was / were
D
were/were
Yao Ming, who ______ the Houston Rockets, is working hard to make his dream come true.
#103317
A
joined
B
joined in
C
took part in
D
competed in
It i s the second time that the poor area_______.
#101272
A
had been visited
B
has been visited
C
was visited
D
is visited
— Are you a member of the club?— . It’s years since I .
#101968
A
Yes; was
B
No; was
C
Yes; had been
D
No; became