Помогите британский, хз что делать вроде в косвенную речь

1) Nick's mother said to her son not to eat too much ice-cream
2) My friend asked me to explain how to solve that problem
3) Teacher said to Jane she hadn't done her work well
4) Woman said to her son she was glad that she was here
5) Mother asked us what we were doing there
6) Pat asked if Lena bought that colourful sweater
7) Teacher asked who helped me to do my homework
8) Rob asked if that T-shirt was rather baggy