Underline the errors in these sentences

Underline the errors in these sentences. Rewrite each sentence.
1. Kate's brother is doctor.
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2. I ate food with Jack, and after that I went home.
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3. The milk is good for you.
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4. Can you give me an advice?
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5. I've look in the box. All is broken, I'm afraid.
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6. They will have finished the new hospital until the end of May.
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7. There's a police waiting outside.
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8. I come to class with the feet.
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9. Your hair are very beautiful.
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