1 Susan was walking home when it started to rain.
2 Helen was cooking while Tom was working in the garden.
3 I was sleeping when my friend Joe came to my house.
4 Who were you waiting for when I saw you?
1 Susan was walking home when it started to rain.
2 Helen was cooking while Tom was working in the garden.
3 I was sleeping when my friend Joe came to my house.
4 Who were you waiting for when I saw you?