单项选择题

You are not allowed to take a second job ______ your employer gives you permission.

A．so long as
B．otherwise
C．unless
D．whereas
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单项选择题
Giorgio, now fifteen, and Lucia, also in her teens, were reaching the ______ of their adolescence.
A．crisis
B．criterion
C．causality
D．credibility
单项选择题
Most scientists agree this outpouring contributes to global warming, which could eventually lead to coastal flooding, ______ weather, and widespread crop loss.
A．intensive
B．extreme
C．unpleased
D．unique
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