1. the baker asked my sister "how much bread do you need today"
-> the baker asked my sister 
2. “Are those shoes too small for you?” I said to Nga
-> I asked Nga
3. “I’m very busy, so i’ll ring you tomorrow.” Susan said to me
-> Susan told me
4. She wanted to know,”What aspect of learning English do you find most difficult?”
-> She wanted to know 
5. the teacher said to us, “You mist do your homework everyday”
-> the teacher told us