=>
V/
1. Before he arrived at the airport, the plan had taken off.
2. The door is so stuck that they can't open it.
VI/
1. Peter suggested going somewhere for a drink.
2. He told them not to make noise at noon.
3. Living in Hanoi, Margaret used to have a walk aroung Sword lake.
4. At the age of eighteen, Samantha left high school.