помогите пожалуйста. я вообщем ничего не разумею

1)have been

2)has just stoped

3)has  played

4)have already solved

5)has spoken

6)have just read

7)have spent

8)have just got

9)have met

10)has not set

11)have bought

12) have just

13)have not arrived

14)has already gone

15)has  not   been

16)has not seen

17)has lost

18)have just to

19)has just seen

20)have played