The doctor told me to take the medicine_____.
#12998
A
every fourth hours
B
each fourth hour
C
each four hours
D
every four hours
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---How long will Tom stay here?  ---____.
#14473
A
One and a half year
B
A year and a half
C
One and a half year
D
both A and B
It took us quite a long time to get to the amusement park. It was ___________ journey.
#14431
A
three hour
B
a three-hours
C
a three-hour
D
three hours