IV. Choose the best option A, B, C or D to indicate the underlined part that needs correction in each of the following questions.

17. Jack, (A) not close the door! We (B) keep it (C) open for (D) the cat! 

18. (A) Last summer I (B) went to Nha Trang and (C) buy a lot of (D) souvenirs.

19. I (A) like this game show (B) very much. It (C) is really (D) entertainment.
20. Children now (A) spend (B) much time (C) on the internet than (D) watching television.

21. (A) Please, (B) take these old (C) newspapers to the (D) recycled bin.

22. If robots (A) will (B) do all of our work, we (C) will have (D) nothing to do.

11. You should ________yoga to have better health.

A. play                        B. do                                       C. doing                      D. playing

12.                    causes many breathing problems.

A. Deforestation         B. Air pollution                       C. Noise pollution       D. Soil pollution

13. I _____________Singapore last summer. I went to Korea.

A. didn’t  visit             B. didn’t visited                      C. will not  visit          D. don’t visit

14. Are these wireless televisions expensive? - ________

A. Yes, it is.                            B. Not at all.                C. No, it isn’t.             D. I see.

15. We ________ a lot of trees if we ________ recycled paper.

A. save/ use                                                     B. will save/ will use              

C. will save/ use                                              D. save/ will use

16. Most children like____________because they make them laugh a lot.

      A. films                       B. love stories             C. comedies                D. documentaries