Jack doesn’t smoke now, but he ______________ for almost twenty years.
#101839
A
was smoking
B
smoked
C
has smoked
D
had smoked
推荐题目
A single pipeline ___________ all the houses with water.
#102223
A
is served
B
serves
C
are serving
D
serve
The new secretary is supposed to report to the manager as soon as she ________.
#99927
A
will arrive
B
arrives
C
is arriving
D
is going to arrive
In the less than two months since the reality television show—"Where Are We Going , Dad?" first aired, the show to the top of Chinese television ratings．
#99655
A
had climbed
B
has climbed
C
climbed
D
was climbing
In the last few years thousands of films all over the word.
#102635
A
have produced
B
have been produced
C
are producing
D
are being produced
Ladies and gentlemen, please fasten your seat belt. The plane __________.
#102320
A
takes off
B
is taking off
C
has taken off
D
took off