Someone has prepared a meal for you.改为被动语态,省略(someone)

题目

Someone has prepared a meal for you.改为被动语态,省略(someone)
将下列句子中用斜体印出的动词改成被动语态,省略someone
1,someone has prepared a meal for you.
2,someone will translate the book into English
3,someone must send a telegram to him
4,someone had put out the fire before the fire brigade arrived
5,someone gave the cat some milk to drink
斜体的动词是1.has prepared 2,will translate 3,must send 4,had put out 5,gave

答案

1,Someone has prepared a meal for you.
A meal has been prepared for you.
2,Someone will translate the book into English
The book will be translated into English
3,Someone must send a telegraph to him
A telegraph must be sent to him.
4,Someone had put out the fire before the fire brigade arrived
The fire had been put out before the fire brigade arrived
5,Someone gave the cat some milk to drink
The cat was given some milk to drink.