Chuyển thành câu bị động
1. Do scientists do experiments?
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2. Is Mary wearing a new skirt at the moment?
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3. Where did they leave their bags?
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4. Is the cat chasing the mouse?
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5. Have they asked the actress personal questions?
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6. Can Mr Jones teach English?
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7. Are they going to feed the baby?
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8. Did Peter find the missing key?
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9. Have they sold their house?
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10. How did he find the solution to the problem?
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11. Why is Peter making dinner today?
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12. Can you show me your homework, please?
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13. Will they have repaired your car by Tuesday?
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14. Were the children playing football when they arrived?
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15. How many stamps have you collected?
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16. Are mum and dad paying the bill now?
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17. Will they give you money for the trip?
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18. Did they demolish the old building last week?
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19. Has Sheila opened the window?
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20. Does your mum do all the housework?
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