1. D. racket (The others are related to water activities.)
2. B. unhealthy (Eating too much junk food is not good for your health.)
3. B. sunburnt (Sunburn is a common result of spending too much time in the sun.)
4. C. interesting (Bird-watching is an interesting hobby.)
5. A. hobby (Making models is something he does regularly for pleasure.)
6. A. buying (This is the present continuous tense, used for actions happening now.)
7. D. has visited (This is the present perfect tense, used for actions that happened in the past and have an effect on the present.)
8. A. should (This is a suggestion or advice.)
9. C. have (This is the present simple tense, used to talk about habits or general truths.)
10. B. helped (This is the past simple tense, used to talk about actions that happened in the past.)

11. Which one does not belong to the group?

A. pool                    B. water                   C. goggles                D. racket

12. It is _____ to eat so much junk food.

A. healthy                 B. unhealthy             C. healthful               D. health

13. Peter looks red. He was outdoors yesterday. Perhaps he has……………..

A. flu                       B. sunburnt               C. spots                    D. stomachache

14. Jim finds bird-watching ___________ because he can learn about nature.

A. interest                B. interested             C. interesting            D. interests

15. My brother spends a lot of time making models. That is his………..

A. hobby                B. making model               C. habit                   D. plant

16. She loves ______ flowers and putting them into different vases.

A. buying                 B. to buy                  C. buy                      D. bought

17. Lan enjoys travelling so much. She  ……………… Nha Trang several times.

A. will visit               B. have visited          C. visits                    D. has visited

18. You ______ eat more vegetables and fruit.

A. should                  B. shouldn’t              C. had to                   D. needn’t

19. Most students …………..chapped lips and skin in the winter.

A. has                     B. had                               C. have                   D. are having

20. Last summer, we ………..the elderly in       nursing house.

A. helping               B. helped                                    C. to help                D. help