Ответ:
- 1 The teacher arrived while we were copying our homework.
- 2 The dog was running around the park when it saw the cat.
- 3 My baby brother was crying all morning until we turned on the TV.
- 4 While Susan was studying, her phone rang.
- 5 Somebody picked up my phone while I was not looking.
- 6 What other animals did you see when the lions slept?
- 7 The children were crying a lot while we were looking after them.
