单项选择题


A．from
B．on
C．to
D．for
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单项选择题
Sometimes I wish I______ a pair of wings to enable to fly like an eagle.
A．be having
B．were having
C．could have
D．could have had
单项选择题
Retirement is obviously a very complex______ period and the sooner you start planning for it, the better
A．transformation
B．transmission
C．transportation
D．transition
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