Ответьте на вопросы с выражением to be sure:
1. Are you always sure that you are right? 2. Are you sure that you speak English well? 3. Are you sure that you - don't make mistakes? 4. Are you sure that you are clever? 5. Are you sure that you know Word well? 6. Are you sure that you understand your friends? 7. Are you sure that your friend was bom on the 2 of November?
8. Are yoa sure that it is 3 o'clock now? 9. Are you sure that it isn't cold in the street? 10. Are you sure that your colleagues like you? 11. Are you sure that your advice is always good?