Look at the sentences and do the exercise.
1. I trust my brother. (I trust him.)
2. You teach the lesson to your students. (You teach them the lesson.)
3. They send an invitation to their sister. (They send her an invitation.)
4. We show the new movie to you. (We show you the new movie.)
5. She proposes a solution to me and my friends. (She proposes a solution to us.)
6. You buy a gift for your friends. (You buy them a gift.)
7. He answers the teacher. (He answers him/her.)
8. They tell a secret to me. (They tell me a secret.)
9. We recommend this book to our classmates. (We recommend this book to them.)
10. He offers a gift to you. (He offers you a gift.)