单项选择题

--It's a long time ______ I saw you last.--Yes, and what a pity it is since it will be a long time ______ we see each other again.

A．before; since
B．when; when
C．since; before
D．when; then
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单项选择题
Since you have made up your mind, just go ahead. We will ______ you.
A．stand for
B．stand by
C．stand out
D．stand off
单项选择题
Mr. Smith is ______ a teacher; he is also our good friend.
A．other than
B．rather than
C．more than
D．less than
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