Помогите с 4 заданием

1
1) Have already learnt 2) taught 3) Have you played 4) has travelled 5) haven't seen 6) What have you prepaired 7) have asked 8) haven't spoken 9) have had 10) Have you passed 11) I have just got 12) I haven't seen
2
1) I'm not playing 2) I was playing 3) He was playing 4) We were playing 5) What are you doing; I am drinking 6) wasn't playing; was playing 7) What was he doing; was reading 8) are not doing; are playing
3
1) came; was playing 2) I was going; met 3) came; had; read; began 4) is speaking; I don't know 5) came; was doing 6) What does your son do; studies 7) are talking; talk
4
1) Who has made some mistakes in his work? What has your friend made? How many mistakes has your friend made in his work? Has your friend made some mistakes in his work? Has your friend made some mistakes in his work or in his spelling?
2) Who has translated the long text? What have the students translated? When has the students translated the long text? Have the students translated the long text? Have the students translated the long or the short text?