• Time: 2 p.m. - 4 p.m., 6 March
• Place: School Grand Hall
• Topic: Water pollution

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

2. We were shocking when our classmate my get ten marks in math.

3. Before my father leaves for work, he cooked breakfast for my family.

4. After I finish my homework, I will watch Animal Planet channel.

1. She was surprised when she found a golden coin in the garden. (when)

2. I will go shopping as soon as I find my wallet (as soon as)

3. He made a quick phone call to a client before he left the office. (before)

4. After he had mowed the lawn, he took a rest. (after)