You'll have to spend __writing your report here.
A. one day or two days
B. one day or two
C. a day or two
D. two days or one
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He cut the cake__ .
A. in halves
B. in half
C. into halves
D. into half
Either you or the headmaster __the prizes for these gifted students at the meeting.
A. is handing in
B. are to hand out
C. are handing in
D. is to hand out
__of the population here are peasants.
A. 20 percents
B. 20 percent
C. the 20 percent
D. the 20 percents
It's about__ , the thickness of a human hair.
A. two-fifteenth
B. two-fifteenths
C. two fifteen
D. two fifteens