1.We wore warm clothes so that we wouldn't get cold.

2.The man spoked very slowly so that we could understand him.

3.I whispered so that nobody else could hear our conversation.

4.Please arrive early so that we could be able to start the meeting on time.

5.She locked the door so that she wouldn't be disturbed.

6.I slowed down so that the car behind me wouldn't be able to overtake.