| 1. I had never seen a real harp before. | | |
| 2. Nelson sat at the piano. | | |
| 3. A guitar has strings. | | |
| 4. We have been practicing hard for the past few weeks. | | |
| 5. I am going to take music lessons. | | |
| 6. Dave is composing a new song. | | |
| 7. Carla and Yolanda will sing a duet. | | |
| 8. You have already heard this song three times. | | |
| 9. They will be holding a contest for young musicians. | | |
| 10. Sarah had been practicing for more than an hour. | | |
| 11. We were just making plans for the concert. | | |
| 12. I will have finished my work by then. | | |
| 13. By that time, you will have been working here for five years. | | |
