IV. Give the correct form of the words.
16. There are lots of __________ (beauty) beaches in Viet Nam.
17. Air __________ (pollute) is a big problem in the big cities.
18. Spring is __________ (warm) than Fall. But Summer is the __________ (hot) season of a
year.
19. His (tooth) __________ are small and white.
20. I go to visit my grandparents (one) __________ a month.
 

IX. Make questions for the underlined part in each sentence.
41. We go to the zoo twice a month.
____________________________________________________________
42. We can meet in front of the theater at 7.30.
____________________________________________________________
43. Bob likes the comedy because it makes him laugh.
____________________________________________________________
44. Simon is in a lot of pain now because he has a toothache.
____________________________________________________________
45. I felt sick after eating that food.
____________________________________________________________

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