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4. The house is a mess, the cat is lost, and the car has been stolen by Justin.
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5. Unfortunately, my plan was ruined by Gerald, the building superintendent.
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6. The roof was leaking. It had been leaking all week.
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7. The ball was thrown by Lucy, who had been hiding in the bushes.
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8. Francesca was placed on the first flight to Boston. Her father put her there.
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9. “To be or not to be?” That is the question.
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10. A feast had been created from nothing. I was astounded.
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答案：
1. My brother taught me the principles of barbecuing.
2. The former head chief gave the title to my father.
3. The party wrecked the house and the guests let the cat loose.
4. The house is a mess, the cat is lost, and Justin has stolen the car.
5. Unfortunately, Gerald, the building superintendent, ruined my plan.
6. No change.
7. Lucy, who had been hiding in the bushes, threw the ball.
8. Francesca’s father placed her on the first flight to Boston.
9. No change.
10. A feast had been created from nothing. This astounded me.
练习：被动语态 —— 自由作文
写一篇100词的短文，题目不限（但最好与你的文章题目有关），不用动词 “to be” 的任何形式。