In order to find the missing child, villagers _______ all they can over the past five hours.
#100499
A
did
B
do
C
had done
D
have been doing
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Want to buy that kind of cloth because I       the cloth       well.
#101067
A
have told; washed
B
have been told; washes
C
was told; washed
D
have been told; is washed
They became friends again that day.Until then,they_____to each other for nearly two years.
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A
didn’t speak
B
hadn’t spoken
C
haven’t spoken
D
haven’t been speaking
Nobody in the class except you and me _____ to the principal about the air quality problems. 
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A
has complained
B
have complained
C
complain
D
complaining
 Japan’s economy _______ in the past twenty years. No one knows how long it ______ before it regains its increase.
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A
has been declining; will be
B
has declined; would be
C
had been in decline; would take
D
was on the decline; will take