Fill in : am, is,are. 20.jane and philip talking to grandpa. 21.what you doing there? 22.i going to the park; you coming with me? luke working on the computer? 24.mum cooking dinner and l helping her.

20. Jane and Philip are  talking to grandpa.
21. What are  you doing there?
22. I am going to the park;  Are you coming with me?
23. Is Luke working on the computer?
24. Mum is cooking dinner and l am helping her.