Bài tập về Thì hiện tại tiếp diễn trong câu bị động Tiếng anh lớp 8

PASSIVE VOICE – PRESENT CONTINUOUS 
1. The boy is singing a merry song. 
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2. Mr. Brown and his son are flying a kite at this time. 
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3. The cat is drinking some wine. 
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4. The penguin is making a snowman outside now. 
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5. The waiter is serving two diners at this time. 
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6. My sister is reading a novel now. 
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7. They are selling paintings now. 
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8. Mom is vacuuming the floor. 
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9. Mary is throwing the ball into the basket. 
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10. Santa Claus is carrying a big bag of presents on his back. 
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11. Look! The dog is gnawing a piece of paper. 
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am/is/are + being + past participle