一、还原课文
Rock music 1. (come) out of my computer. As a rock music lover, I play the electric guitar in the school band. Sometimes I write songs and share 2. (they) online. There is so much fun in music.
Right at this moment, the sound 3. Grandpa’s erhu cuts in. Yes, music is also my grandpa’s hobby. But it’s a different kind of music. He likes playing the erhu in the park with 4. (he) friends. They sing Beijing opera together. They have many 5. (fan).
An idea suddenly hits me:“Why don’t we 6. (put) our music together? I can write a song for us.”
“Grandpa!” I rush into 7. (he) room...
There 8. (be) an art festival every autumn in my school. I decide to take part in 9. (it) with Grandpa this year. After a 10. (week) practice, we are on the stage. I nod to Grandpa and we fire up our instruments. Everybody moves with our music.
Grandpa gives me a big smile, and I smile back. It feels great to enjoy our hobby together.

1. is coming 2. them 3. of 4. his 5. fans
6. put 7. his 8. is 9. it 10. week's