单项选择题

How ______ within such a short period of time

A．this all can be done
B．all can this be done
C．all this can be done
D．can all this be done
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单项选择题
If you go skating tomorrow, ______.
A．so am I
B．I am, too
C．so shall I
D．so do I
单项选择题
He is a gifted musician and often play ______ flute at home.
A．a
B．the
C．×
D．an
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