.... 1. yo.t.o. ok.. yesterday.... 7. Lan can sing very well. She can't play the piano. (Combine these sentences with "although") 8. We make the air dirty because we use the car all the time. (Rewrite this sentence with "If") 9. The film was so boring. However, Jack saw it from beginning to end. (but) 10. The Nile is the longest river in the world. →No river ..... 11. We will probably visit Japan in the future. We might .... 12. You mustn't swim in that polluted lake, boys. - Don't. (1 pts)