My father have been to hainan many times.
2. He tried to put all the books into the bag, but without success.
3. Yesterday he fell in the kitchen two plates.
4 he knocked at the door, I am restaurant dinner.
5 and when I got home yesterday evening, when father was watching TV.
6 when he phoned me from the school, when I was doing the housework.
7. His parents have gone to London.