By the time we arrived at the railway station, the train _________. As a result, we missed the train.
#99915
A
left
B
is leaving
C
had left
D
leaves
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With the development of science and technology, people’s life _______ in the past few years.
#104987
A
improved
B
has improved
C
is improving
D
had improved
--- _____ the change of the schedule ______?--- Oh, God! I forgot all about it. I’ll do it right now.
#100466
A
Has, been announced
B
Was, announced
C
Has, announced
D
Had, been announced
One third of the class _____ agreed to be volunteers to help the aged this vocation.
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A
are
B
is
C
has
D
have
Ever since middle school, my sister and I ________ about taking a bike trip.
#100065
A
dreamed
B
dream
C
have dreamed
D
had dreamed