Rewrite the sentences using "when" and "while".
1 I was walking to the class. I saw a bird.
2 I was running. It started to rain.
3 The cat dropped the vase. I was reading a book.
4 Edward arrived home. His mother was cooking
5 I met a friend. I was shopping.
6 I was eating a sandwich. The electricity went out.
7 I was smelling the flowers. I got stung by a bee
8 I was running. I slipped on ice.
9 My mother and her friends were chatting. They drinking tea.
10 Children were playing. They heard their mother's call.​