6
1 have you read the story of"cops and robbers"?
2when have you read a story?
3 what have you read 5 minutes ago?
4 who has read the story?
b)
1 has asel ever played cops and robbers?
2 who has never played cops and....?
7.
a. victor hasn't yet been to Disbeyland.
b. Mike hasn't been to Kazakhstan yet.
8. has gone
has been