Listen! Someone _______________ (play) the violin upstairs. Can you hear it? 2 The Berlin Wall _______________ (come) down in 1989. 3 My brother played a practical joke on me while I _______________ (sleep). 4 I hope to see Jane this weekend. I _______________ (not see) her since last Christmas! 5 In the future, the energy people use in their homes _______________ (not come) from oil. 6 Ice cubes melt if you _______________ (put) them in warm water. 7 If you listen to your MP3 player so loud, you _______________ (damage) your ears.