EX6. Turn the sentences into negative and interrogative forms.
1. They were in Rio last summer.
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2. We did our exercise this morning.
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3. My parents came to visit me last July.
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4. The hotel was very expensive.
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5. I had a bicycle when I was young
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6. The children went to the zoo yesterday.
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7. Ernie ate the last doughnut.
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8. They bought a new house last month.
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Sinh Học lớp 12
