Rewrite these sentences in the negative form, like this example: Bill is driving his car. Bill isn’t driving his car.
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1. Sam is eating pasta.
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2. Amy and Joe are skiing.
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3. The cat is sleeping.
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4. They are shopping.
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5. Tom is writing an email.
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6. I’m having a shower.
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7. Maddy is driving to the mall.
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8. He is surfing.
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9. I'm studying History.