单项选择题

Whether you learn or not is entirely ______ you.

A．as to
B．up to
C．about to
D．due to
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It was because of bad weather ______ the football match had to be put off.
A．until
B．so that
C．why
D．that
单项选择题
I can not see any improvement ______ your writing.
A．in
B．about
C．with
D．for
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