1. We wrote Betty's name on the board to celebrate her birthday.
2. We all go to school in order to expand our knowledge.
3. She gave up her job to take care of her mother.
4. Mr. Nam came to Lan’s house in order to visit her father.
5. We are talking softly so as not to wake up our grandfather.
6. She must take a bus so as not to take the train.
7. He has saved a big sum of money to buy a motorbike.
8. She was wearing sun glasses so as not to be being recognized.
9. My mother needs a tin opener in order to open the bottles.
10. My sister turned on the TV to watch an interesting film.
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