Why is water so important？
A. Because people don't drink much water.
Because humans are all made of water.
C. Because without enough water, we will be sick.
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Who make the art works in the art exhibition？
Americans.
B. Chinese who live in China.
Chinese who live in America.
Where probably can you find this text？
A. Outside an exhibition center.
B. On the front door of a cinema.
C. In newspapers.
When do people need more water？
A. When they are thirsty.
B. When they've just had exercises.
C. When they are sick.
How long will people live without water？
A. One day.
B. Two or three days.
C. A long time.
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