单项选择题

A．clean
B．dirty
C．harmful
D．pollution
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单项选择题
What will they probably do tonight
A． Watch TV.
B． Study their textbook.
C． Do some homework.
单项选择题
What’s the climate like
A． It’s cold and sunny.
B． It’s warm and rainy.
C． It’s cold and rainy.
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