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V. Change into passive voice.
1. Mary types letters in the office.
2. His father will help you tomorrow.
3. Science and technology have completely changed human life.
4. Peter broke this bottle.
5. They are learning English in the room.
6. Nothing can change my mind.
7. Has Tom finished the work?
8. Did the teacher give some exercises?
9. Have they changed the window of the laboratory?
10. Is she going to write a poem?
11. Is she making big cakes for the party?

VI. Give the correct forms of the words in brackets.
1. A buffalo ploughs __________ than a horse. (GOOD)
2. When you game online, be __________ when you 'make friends' with strangers. (CARE)
3. Our house is very far from the shops. It's very __________. (CONVENIENT)
VII. Put the words in the correct order to make the complete sentences.