1.Jim has
repaired his bicycle, so
he can ride in the park with his friends.
2.I can't write the test because I have left my pen at home
3.Kate missed several Englich lessson because
she had just returned from
her holidays.
4.They have
been to Oxford, so
they can tell us about the town.
5.You can't go for a walk because you haven't finished your composition
6.Let's make an apple pie I have bought apples, sugar and
butter