1. This morning I missed the train. I usually catch this train.

=> This morning I missed the train which I usually catch.

2. I met Mary. She asked me to give you this.

=> I met Mary who asked me to give you this.

3. This is my neighbor. Her children are lovely.

=> This is my neighbor whose children are lovely.

4. Jack was the goalkeeper. His injuries were not serious.

=> Jack was the goalkeeper whose injuries were not serious.

5. I gave you the book. It had many interesting drawings.

=> I gave you the book which had many interesting drawings.

6. I am reading a book at the moment. It is interesting.

=> I am reading a book which is interesting at the moment.

7. I’ve lived in Ha Noi. It’s a very ancient and beautiful city.

=> I’ve lived in Ha Noi which is a very ancient and beautiful city.

8. These cakes are very delicious. I bought them yesterday.

=> These cakes which I bought yesterday are very delicious.

9. They are singing a song. Do you like it?

=> Do you like the song which they are singing?

10. This is a story of a man. His wife suddenly loses her memory.

=> is is a story of a man whose wife suddenly loses her memory.