B2:
1. We hurried to school inorder not to be late
2. He climbed the tree so as to get a better view
3. Some young people like to earn their own living so as to be independent of their parents
4. We should do morning exercises in order to improve our health
5. I tried to be on time in order not to make our teacher sad
6. Every people in the world must unite their effort in order to maintain and protect peace
7. She put on warm clothes in order not to catch cold
8. He hurried to the station in order not to miss the train
9. She locked the door so as not to be disturbed
B3:
1. People use money in order to buy things they need
2. Banks are developed in order to keep people's money safe
3. I need to buy skme laundry detergent in order to wash my clothes
4. I came to this school in order to learn English
5. Tom was playing very softly in order not to disturb anyone
6. They rushed into the burning house in order to save the child
7. Lan often attends English speaking club so as to practice speaking English
8. He stood on the chair in order to see better
9. Please shut the gate for the cows in order not to get out of the cowshed
10. The boy tiptoed into the room so as not to make everybody up