单项选择题

Whether you learn or not is entirely ______ you.

A．up to
B．as to
C．about to
D．due to
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单项选择题
I was so ______ the night before my examination that I could not sleep.
A．worrying
B．tired
C．happy
D．nervous
单项选择题
Julie spent one month ______ her term paper on Chinese poems.
A．to write
B．and wrote
C．written
D．writing
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