2.If the town is seen from the top of the hill,it looks more beautiful .
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3. As the watch is used for a long time ,it needs repairing .
4.The boy will be blind in both eyes unless he is treated on time.
5.Though he had been told many times he couldn’t understand it.
What problems did the thrown-away plastic bags cause?
A. They made the people near the sea fall sick.
B. They made the fish and birds either sick or die.
C. They gave off bad smells in our natural world.
D. They made people feel like they lived in a trash can.
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