单项选择题

Not only those students but also the teacher ______ something about the matter.

A．know
B．knowing
C．knows
D．known
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Don't get ______ . Everything will be all right.
A．excited
B．exciting
C．to excited
D．in exciting
单项选择题
I still remember the days ______ we spent together abroad.
A．why
B．when
C．which
D．where
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