1While I was sleeping, I heard a loud noise.

2. We were shocked when we heard the news.

3. Before my father leaves for work, he feeds the dogs and cats.  

4. After I finish my homework, I hang out with my friends.

1. She was surpised when found a golden coin in the garden

2. I will go shopping as soon as I find my wallet.I find She was surprised when found a golden coin in the garden.

2. I will go shopping as soon as I find my wallet. As soon as I find my wallet, I will go shopping.

3. He made a quick phone call to a client before he left the office. / Before he left the office, he made a quick phone call to a client.

4. After he mowed the lawn, he took a rest. / He took a rest after he mowed the lawn.