8. Originally, tennis was an indoor game. Tennis used.............................................................................................................................. 9. My father prefers living in the countryside to living in the city. My father likes........................................................................................................................ 10. Nobody in my class is as intelligent as Lan. Lan is....................................................................................................................................... 11. Have you ever played a computer game before? Is this....................................................................................................................................... 12. France presented the Statue of Liberty to the United States in 1876. The Statue ............................................................................................................................... 13. The water was so cold that the children couldnt swim in it. The water wasnt..................................................................................................................... 14. He hasnt chatted with his classmates through the Internet for ages. Its ages................................................................................................................................... 15. People should stop experiments on animals. Experiments............................................................................................................................ giải thích