把下列句子改成被动语态

1 We were made to study English (by him)→可省略
2 Some pictures are often showed to her （by them） 或 she is often showed some pictures （by them）
3 The book has been kept for two days by Ann
4 这个 一般不会用被动语态说的……
但是 还是改过来吧 A doctor should been visited by him
5 A book is being read by her 如果是"The book …… "则 特指那本书 这需要上文提及这书 单独改就改成A book吧
6 Some inventions were invented by the inventor 这样改是比较好的 因为这些发明是由那个确定的发明家发明的 所以最好改成the 特指一下

1.We were made to study English by him.
2.She is often shown some pictures by them.
3. The book has been kept for two days by Ann .
4. A doctor should be seen by him .
5. A book is being read by her.
6. Some inventions were invented by An inventor.

比较标准的写法如下
1. We were made by him to study English.
2. She is often shown some pictures by them.
3. The book has been kept by Ann for two days.
4. A doctor should be visited by him.
5. A book is read by her.
6. Some inventions were invented by an inventor.

1. We were made to study English by him.
2. She is often shown some pictures by them.
3.The book has been kept for two days by Ann.
4.A doctor should be seen by him. 这个不是很好说
5. A book is being read by her.
6. Some inventions were invented by an inventor .