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_____the doctors in the hospital is about100 and one fourth of them are _______doctors.
#35904
A
A number of; man
B
The number of; men
C
A number of; men
D
The number of; man
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My family has two dogs.One is white, and      is black.
#35964
A
other
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another
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the other
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Teenagers are supposed to ________ their seats to the old on bus.
#35468
A
pass
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offer
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----_______do you go skateboarding?----Twice a week  
#39965
A
Howsoon
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Howfar
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I can’t find    to sit on the crowded bus.
#43195
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nowhere
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somewhere
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—        did you stay in Hong Kong?　　 —  About 20 days.
#39409
A
How often
B
How soon
C
How long
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