单项选择题

What kind of birds can be found often in tree-tops, in the air, or on the water（）

A. Birds with duller colors.
B. Birds with darker colors.
C. Birds with brighter colors.
D. Birds with different colors.

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单项选择题
Why did ancient people usually live where there were plenty of trees（）

A. Trees provided them with shades.
B. Trees indicated plenty of sunlight and rainfall.
C. Trees were materials for burning and building houses.
D. Trees provided them with fruit and food.
单项选择题
Why does the woman find study in drama and theatre useful（）

A. It helps her to attract more public attention.
B. It improves her chance of getting promoted.
C. It strengthens her relationship with students.
D. It enables her to understand people better.
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