单项选择题

The captain was ______ to sergeant for failing to fulfill his duties.

A．regulated
B．promoted
C．deregulated
D．demoted
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单项选择题
The Canadian flag has a ______ leaf on it.
A．mane
B．margarine
C．maple
D．mango
单项选择题
Sometimes my husband ______ so loudly, it keeps me awake at night.
A．snarls
B．snores
C．snorts
D．smolders
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