Viết những câu sau sang câu gián tiếp

Viết những câu sau sang câu gián tiếp.
1. He said to her, "You are my friend."
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2. Johnny said to his mother, "I don't know how to do this exercise."
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3. "Don't come back before one o'clock", advised my brother.
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4. "Cook it in butter", Mrs Brown said to her daughter.
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5. The pupils said "Teacher, give us better marks, please."
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6. My friend said, "Are you going to leave tomorrow?"
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7. "Have you done your homework?", said my mother.
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8. I asked Bill," What time did you go to bed last night?"
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9. Paul said, "I must go home now."
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10." There is an accident.", said the policeman.
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