Use a relative pronoun
1. The teacher is Mr Pike. We studied with him last year->...................
2.The problem has been discussed in class. We are very interested in it.->...............................
3.Do you see my pen? I have just written the lesson with it.->..............................
4.I like standing at the windows. I can see the park from this window.->.......................
5.We are crossing the meadow. We flew kites over it in our childhood.->.........................
6.The middle-aged man is the director. My father is talking to him.->.....................
7.The boy is my cousin. You made fun of him.->.........................
8.The woman lives next door to me. You gave place to her on the bus.->..............................
9.These children are orphans. She is taking care of these children.->..........................
10.This is the result of our work. I'm pleased with it.->...............................