单项选择题

When these occur, we tend to resort to background tendencies and habits to justify our behavior.

A．fall back on
B．come up with
C．live up to
D．give way to
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单项选择题
With adequate support and insight, all teachers can be active participants in excellent professional development.
A．elusion
B．vision
C．respect
D．rejection
单项选择题
It's no using trying to speak to her this morning: she's in a mood.
A．bad-tempered
B．fierce
C．unhappy
D．very angry
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