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20. My brother is afraid of water,________ he can’t swim.

A. because                    B. but                  C. and                  D. so

21. ­­­____________ is your favourite tennis player?”

– “I don’t like tennis.”

A. What               B. Which             C. Who                D. Where

22. ____________ eat too much salt. It’s not good for you.

A. Do                   B. Don’t              C. Please             D. Can’t

23. ­­­­________ is she so sad?”

– “Because she can’t watch her favourite f ilm.”

A. Why               B. How                C. What               D. When

24. The      ____ continent in the world is Antarctica.

A. most coldest   B. colder             C.coldest             D.most cold

25. I______ him for three months, and now we are best friends.

A. have known   B. am knowing   C. knew               D.know

26. She______ to South America before, so she wants to visit it.

A. has ever been B. wasn't             C.has never been          D.was

27. They are among     people I have ever met.

A. more friendly B. most friendly C. friendliest       D. the most friendly

28. How many cities in Viet Nam______ up to now?

A. do you visit   B. have you visitedC. were you visited D.did you visit

29. Cities can provide________ health and education services.

A. most the convenient                            B. the most convenient

C. most convenient                         D. the best convenient

30. It's not coffee, but tea is_____ drink in Britain.

A. more popular                              B. most popular

C. more popular than                      D. the most popular