1. _______ he was playing computer games, his mother came back.
2. My father was reading _________ mother was washing.
3. ________ he arrived, I was writing a letter.
例：He arrived. I had a bath. He arrived when I was having a bath.
1. The boss arrived. She typed the letter.
2. The phone rang. I washed the dishes.
3. He came in. I had breakfast.
1. 当我在做饭的时候，他在花园工作。（cook dinner, work in the garden）
2. 当我在买票的时候，他在读报纸。(buy the ticket, read the newspaper)
3. 当我在洗衣服的时候，他进来了。(wash clothes, come in)
1. He finished work. He went home.
2. The children ran away. They broke the window.
3. She wrote the letter. She went to the post office.
4. He felt very ill. He died.