单项选择题

Many rare species of plants and animals are threatened with ______ with the worsening of environment and mass hunting.

A．migration
B．extinction
C．distinction
D．distraction
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单项选择题
I'm afraid we can't accept this credit card — it ______ last week:
A．exceeded
B．expired
C．terminated
D．elapsed
单项选择题
Your state of anxiety does not ______ your being so rude to me.
A．modify
B．testify
C．rectify
D．justify
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