С,переобразуйте в present perfect 1)james is happy because (do) his homework and can go to the cinema with his friends.2)peter is happy because he (swim) 100 meters in two minutes 3)samantha and jenny are happy because the bell (ring).4)tom and roy are happy because they (see) a film with their favorite actor djdjdj.
He has swam
Has been rang
They have seen
2) has swum
3) has rung
4) have seen