填空。
1.My sister is a n
________. She helps sick (生病的) people.
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2.—How do you go to school, Ann? —I go to school
________.
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3.We are
________. We drink the rain water. We love the sun. We can grow and grow.
4.Please pay attention to the traffic lights. We should go at the
________ light.
5.
________ ________, please.