Giúp mình với ạ:333

1. Take an extra 200 if you need some more money. 2. I would insist you practice harder if I were your father. 3. Please let me know right away if my girlfriend calls. 4. I would have told them what I was thinking if I had thought of the right words! 5. I would not have to worry about anything if I were a rich kid. 6. We will have to go to another theater if they run out of tickets. 7. Let us know if you change your mind. 8. You would have thought she was crazy too if you had known my mom. 9. You would have laughed too if you had heard her singing. 10. I could buy any bag I want if I were a celebrity. 11. I would be most grateful if you were to change your mind. 12. Please telephone if she decides to come. 13. He wouldn't have committed those mistakes if he had understood the problem. 14. I would never have moved here if I had known about those problems. 15. We would have been obliged to give him the sack if he had not resigned.