С, . change from passive into active: 1. he offered me a cup of hot tea. 2. a famous designer will decorate the hall. 3. they have taken him for his brother: they look alike. 4. she showed me the toy which her daughter had made. 5. they are buying some ice cream at the moment. 6. we are reading a book by an english writer.

1. A cup of hot tea was offered me by him.
2. The hall will be decorated by a famouse designer.
3. He have been taken by them for his brother: they look alike.
4.  The toy that she showed me had been made by her daughter.
5. Ice cream are being eaten by them at the moment.
6. A book by  an English writer is being read by them.