5. They aren't preparing the dinner now.
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6. She doesn’t write this letter.
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7. She wasn’t arranging flowers at that time.
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8. How much do they pay you?
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9. Are they going to build a new school in this area?
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10. My grandpa is going to make an important decision.
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11. Has Tom finished the work?
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12. They aren’t going to hold the meeting here.
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13. They couldn’t finish their test.
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14. The students might move to a new school
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15. She must do all housework.
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1. They aren't rich enough to travel around the world
-> If they were rich, they would travel around the world
2. Mrs.Mai is responsible for taking care of these elderly people
-> Looking after these elderly people is Mrs. Mai's responsibility
3. Hoa doesn't live near the school , but the always comes to school on time
-> In spite of not living near school, she always comes to school on time
4. We are studying in air-conditioned classroom
-> The classroom in which we are studying is equipped with air-conditioners