Can you rewrite the following sentences in correct English

III. Can you rewrite the following sentences in correct English? 

1.      Laughing is not good with health.

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2. Some people have a very bad habit in littering in public.

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3. People who live in a dusty area often suffer on diseases.

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4. In prevent flu, we should keep our hands clean, out feet warm.

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5. She has a sore throat yesterday.

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