单项选择题

She packed her bags, then called the airport and made a(n)_________on the last flight out of Los Angeles.

A．conservation
B．reservation
C．preservation
D．observation
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单项选择题
Nowadays, the computer can be programmed to _________a whole variety of tasks.
A．impose
B．tackle
C．fulfill
D．cope
单项选择题
Richard doesn't think he could ever _________what is called free-style poetry.
A．take on
B．take to
C．take over
D．take after
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