Ответ:

3 what is he doing on Sunday? - He's meeting his mum at airport

4 what is he doing on Friday morning? - He's taking final exam at 10.00 a.m

5 Is he having dinner with Anna on Monday? - Yes, he's having dinner on Monday

6 When is he going to the dentist? - he's going to the dentist on Tuesday at 11.30 a.m

7 what is doing on Friday night?- He's going to the party

8 what is doing on Saturday? - He's going shopping

9 When is he working? - He's working on Wednesday from 4.00-8.00p.m