严格按照时态和句意改成被动的答案应该是：
1. Machines are made by them in that factory.
2. The stamps will be shown to me by him.
3. Have many buildings been built by the workers in the city?
4. What the boys are often told to do by the teacher?
5. The dictionary was not given to me by him yesterday.
6. The bike isn't being mended by them in that shop.
7. They saw something be stolen by the boy in the supermarket.
8. The free umbrellas can be used by everyone.
9. Trees had better be planted on the hill.
10. He will be made to finish his homework by us.
正规英文写作里极少用被动句。以上的题目太牵强，写成被动特别扭。这纯粹是“中国式英语”，目的大概只是考察语法。
1. Machines are made by them in that factory.
2. The stamps will be shown to me by him.
3. Have many buildings been built by the workers in the city?
4. What the boys are often told to do by the teacher?
5. The dictionary was not given to me by him yesterday.
6. The bike isn't being mended by them in that shop.
7. They saw something be stolen by the boy in the supermarket.
8. The free umbrellas can be used by everyone.
9. Trees had better be planted on the hill.
10. He will be made to finish his homework by us.
正规英文写作里极少用被动句。以上的题目太牵强，写成被动特别扭。这纯粹是“中国式英语”，目的大概只是考察语法。
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第1个回答 2013-04-04
1. Machines are made by them in that factory.
2. The stamps will be shown to me by him.
3. Have many buildings been built by the workers in the city?
4. What the boys are often told to do by the teacher?
5. The dictionary was not given to me by him yesterday.
6. The bike isn't being mended by them in that shop.
7. They saw something be stolen by the boy in the supermarket.
8. The free umbrellas can be used by everyone.
9. Trees had better be planted on the hill.
10. He will be made to finish his homework by us.
2. The stamps will be shown to me by him.
3. Have many buildings been built by the workers in the city?
4. What the boys are often told to do by the teacher?
5. The dictionary was not given to me by him yesterday.
6. The bike isn't being mended by them in that shop.
7. They saw something be stolen by the boy in the supermarket.
8. The free umbrellas can be used by everyone.
9. Trees had better be planted on the hill.
10. He will be made to finish his homework by us.
第2个回答 2013-04-04
1 Machines are made in the factory .
2 The stamps will be showed to me .
3 Have many buildings been built in the city ?
4 What are the boys told to do ?
5 I wasn't given the dictionary yesterday ?
6 The bike isn't being mended in that shop .
7 The boy was seen to steal something in the supermarket .
8 The free umbrellas can be used .
9 Trees had better be planted on the hill .
10 He will be made to finish his homework .
2 The stamps will be showed to me .
3 Have many buildings been built in the city ?
4 What are the boys told to do ?
5 I wasn't given the dictionary yesterday ?
6 The bike isn't being mended in that shop .
7 The boy was seen to steal something in the supermarket .
8 The free umbrellas can be used .
9 Trees had better be planted on the hill .
10 He will be made to finish his homework .
第3个回答 2013-04-04
1.Machines are made by them in that factory .
2. The stamps will be shown to me .
3.Have many buildings been built in the city ?
4.What the boys are often told to do by the teacher?
5.The dictionary was not given to me by him yesterday .
6.The bike are not mended in that shop.
7.The boy is seen steal something in the supermarket.
8.The free umbrellas can be used .
10.His homework will be finished ,
补充：如果主语是动作的承受者，或者说是动作的对象，谓语则是要用被动语态。被动语态由“助动词be + 急务动词的过去分词”构成。助动词be 有人称、数和事态的变化，其变化规则与be 作为连系动词时完全一样。
望采纳，谢谢 。。。 O(∩_∩)O~
2. The stamps will be shown to me .
3.Have many buildings been built in the city ?
4.What the boys are often told to do by the teacher?
5.The dictionary was not given to me by him yesterday .
6.The bike are not mended in that shop.
7.The boy is seen steal something in the supermarket.
8.The free umbrellas can be used .
10.His homework will be finished ,
补充：如果主语是动作的承受者，或者说是动作的对象，谓语则是要用被动语态。被动语态由“助动词be + 急务动词的过去分词”构成。助动词be 有人称、数和事态的变化，其变化规则与be 作为连系动词时完全一样。
望采纳，谢谢 。。。 O(∩_∩)O~
第4个回答 2013-04-04
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