I had a bad cold , do i didn't go to school yesterday . Because............................................................... lan can sing very well . She can't play the piano . Although ..................................................... we make the air dirty because we use the car all the time . If........................................................................ She is interested in watching television. She likes........................................................... we will probabaly go to the moon for our summer holidays in 2050 . We might .......................................................... The river is so big ! What...................................................................