单项选择题

You may keep the book a further week________no one else requires it.

A．lest
B．provided
C．unless
D．until
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单项选择题
Brown's wife died when the baby was born, and today this noble, dear, and________ child is all the life of the Brown family.
A．preceding
B．precious
C．precise
D．previous
单项选择题
All of the students required Professor Hill to________on the French novels he had been reading.
A．command
B．comment
C．compare
D．compel
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