1.Mary says, "my brother is a student"
4. The boy says, "I always invite friends to my birthday party"
6. She says to Elsie, "you don't understand anything"
8. The girl says, "I usually switch off the light at 11 p.m."
11. Dan says, "make sandwiches for our party, Peter"
12. Frank says, "don't make so much noise, girls"