Put the verbs in the correct form.
10. Listen! Somebody ________ (sing)? Can you hear it?
11. It’s 12 o’clock, and my children (cook) __________lunch in the kitchen.
12. You (make) __________a lot of noise. Can you be quieter? I am trying to concentrate.
13. Why ______ (be) all those people here? What is going on?
14. How often James ________ (play) soccer?
15. Would you like _____ (join) the music performance this weekend?