11, He is young, but he performs very well. (In spite of) ............................................................................................................................................... 12, The Nile is the longest river in the world. - No river ............................................................................................................................... 13. We will probably visit Japan in the future. - We might ............................................................................................................................. 14. My brother can run very fast. - My brother is ........................................................................................................................ 15. Nga likes badminton best. - Nga’s favourite ..................................................................................................................... 16. You mustn’t swim in that polluted lake, boys. → Don’t ........................................................................................................................................ 17. We live near the school, but they don’t. → They live ................................................................................................................................... 18. This is my racket, but that one over there is his. → That is ........................................................................................................................................ 19. Minh hopes to speak English well in 3 years. → Minh hopes that ....................................................................................................................... 20. Our sources of energy will soon end if we don’t try to save them. → Unless………………………………………………………………………………………… 21.Barbare plays chess better than Mike. → Mike doesn’t…………………………………………………………………………………