4. "Happy new year" is a song which is always sung on the New Year'Eve
5. On Women;s day , we gave our mother a big bunch of flowers which ...... in the garden
6. I'm looking for a book which tells us about life on other planets
7. My father works for a company that makes car
8. It seems that the Earth is the only planet that can support life .
9. The train which arrived two hours late broke down twice on the way.
10. The book that I gave him was rather difficult.