1. The boys are helping his classmates.
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2. They have written two books.
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3. She takes the books.
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4. The flood destroyed hundreds of houses last year.
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5. The committee was considering some new projects.
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6. The factory has bought several equipments.
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7. She had had dinner before I came.
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8. We should close the windows.
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9. They are going to build a big house.
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10. They will build a new house.
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11. They don’t make planes here.
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12. Do you understand this lesson ?
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13. Has someone posted my letter ?
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14. Have they told you anything about it
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15. What language do they speak in Japan ?
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16. They didn’t look after the children properly.
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17. Why did no one inform me of the change of plan ?
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18. You shouldn’t leave the documents on the desk.
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19. The boys broke the window and took away some pictures.
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20. When did she decorate the room?
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21. What language do they speak in Japan ?
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22. Who bit you ?
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23.Who has cleaned this room?
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