单项选择题

The grapes are harvested on a date that ______.

A．may vary.
B．is traditionally set.
C．depends on the official approval.
D．is determined by availability of pickers.
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单项选择题
The writer complains that when she questioned the lawyers she ______.
A．never got an answer.
B．never got a simple answer.
C．could make no sense of the answer.
D．could not believe what she got.
单项选择题
According to the author, the life of vintners is most controlled by ______.
A．the Bureau of Alcohol, Tobacco and Firearms.
B．unexpected changes in temperature.
C．the sugar content of the grapes.
D．the tempo of the seasons.
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