helpppppp meeeee

Here are the sentences in the correct order: 1. I am glad that you were able to come. 2. We were disappointed that he never replied to our letter. 3. I am sorry that I behaved in such a childish way. 4. The Academy of Language offers you a good and friendly environment to practise your English. 5. Tet is a celebration that family members living apart try to come back home for. 6. Both developed and developing nations are responsible for polluting the rivers and seas. 7. I was worried that you wouldn't come back. 8. I am surprised that she hasn't phoned. 9. If you had a 15-year-old boy staying up late and playing games endlessly, what would you do? 10. We were afraid that you would miss the flight.