单项选择题

By the middle of the 21st century, the vast majority of the world's population ______ in cities rather than in the country.

A．are living
B．will be living
C．have lived
D．will have lived
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单项选择题
It is so warm and ______ by the fire that I feel like sleeping.
A．dusty
B．lustrous
C．glossy
D．cozy
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