Перепишите следующие предложения с used to/didn't use to or would/wouldn't. В некоторых случаях used to и would можно использовать вместе. 
1. Every time he came to visit me in Warsaw my friends gave a party.
2. When Susan was a student she never talked about her friends behind their backs.
3. They had many friends in their hometown but now in London they very lonely.