单项选择题

At the end of last month, they _____ thirty percent of the production plan.

A．will finish
B．have finished
C．had finished
D．finished
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单项选择题
The day will come sooner or later _____ I buy a boat and sail around the world.
A．since
B．as
C．until
D．when
单项选择题
Brown’s father told him he could have _____ he wanted for birthday.
A．wherever
B．whatever
C．whenever
D．whichever
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