1. He is very tired, but he doesn't stop ________ (work).
2. He always ________ (wear) glasses.
3. He likes reading and ________ (write).
4. How many _________ (subject) do you study at school?
5. Look at those boys ________ (play) football over there.
6. Are you ________ (make) a kite for me?
7. She likes to go ________ (shop) on Sunday.
8. Three ________ (child) are having lunch
9. — Where is Bill?
    — He ________ (take) photos in the garden.
10. They ________ (be) students. They want ________ (be) doctors.