45. I felt________ disappointed because of their bad behavior.
A. real B. reality C. really D. realer
46. Hoa's parents_______supported our competition.
A. kind B. kindly C. kindness D. kindness
47. People talk about the pollution in the city more______
A. frequent B. frequently C. frequency D. frequent
48. The air in the countryside is_______ fresher and purer than in the city.
A. actually B. actual C. inactual
49. The students in our school participated________in the ''Green Sunday'' project to keep the city clean and green.
A. immediate B. immediately C. quick
50. You have to listen to your teacher_______.
A. attentive B. attendance C. attentively