13. I last spoke to him when we went on a trip to Tam Dao together.
=> The last
14. My father is better at cooking than my mother.
=>My mother doesn’t ...........................................................
15. You will have an accident if you aren’t more careful.
=> Unless ..............................................................................
16. We went to Hai Phong two months ago.
=> We haven’t ............................................................................................
17. Whose shoes are those?
=> Who...........................................................................................
18. Antarctica is colder than any other places in the world.
=> Antarctica is .......................................................................................
19. My brother plays soccer very well.
=>My brother is ………………………………….......................................
20. Why were you absent from class last Monday?
=> Why didn’t …..................................................................................
21. He started working as an MC when he left university.
=> He has ...........................................................................................................
22. How long was your flight from Hanoi to Jakarta?
=> How long did it………….............................................................……