Ответ:

1. When Fred arrived at the party, everyone was dancing.

2. While I was jogging in the park, I noticed a big, black cat behind some trees.

3. As Pauline was driving to the gym, she crashed her car into a wall.

4. As soon as Jerry heard the news, he left.

5. Wendy was doing her homework while her parents were sleeping.

Объяснение: