Here is the completed dialogue with the correct forms of the verbs in brackets:
Sue: Hi Deb. What are you doing (you / do)?
Deb: Well, at the moment I am studying (1 study) for the English exam on Monday.
Sue: Studying? I never study (2 never / study) on Friday evenings!
Deb: Well, I always do (3 always / do homework) homework on Friday evenings. Then I am (4 always / be) free on Saturdays and Sundays.
Sue: It's a good idea, but I feel (5 feel) lazy on Friday evenings. I usually watch (6 usually / watch) TV with my sister. She always watches (7 always / watch) TV after school, but we are not watching (8 not watch) it this evening.
Sue: Are you listening (9 you / listen) to music?
Deb: No, we are playing (10 play) a great new computer game. We are phoning (11 phone) you because we want to play the game with you.
Sue: Well, thanks, but sorry, not now. I am finishing (12 finish) my English book. What about tomorrow morning?
Deb: OK, that’s great. See you tomorrow. Bye.
Sue: Bye!
Feel free to ask if you need any further assistance!