Chọn đáp án đúng: Laura fell asleep during the lesson.....she was tired

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13. Laura fell asleep during the lesson.....she was tired.
A. so
B. but
14. It was.....day of the year.
A. the colder
B. the coldest
15. She is.....student in my class.
A. most hard-working
B. more hard-working
16. Jupiter is.....planet in the solar system.
A. the biggest
B. the bigger
17. Teenagers enjoy.....to music and.....out with friends.
A. listen...hang
C. because
D. therefore
C. coldest
D. colder
C. the most hard-working D. as hard-working
C. bigger
D. biggest
D. listening... hanging
D. inconvenient
D. much more peaceful
B. to listen...to hang
18. Don't worry. It is.....to travel to that village even at night.
A. safe
B. unsafe
C. difficult
C. less peaceful
B. chicken, buffalos and cows
D. ducks, geese and cows
19. Life in a small town is.....than that in a big city.
A. peaceful
B. much peaceful
20. The Thai people raise a lot of poultry such as.....
A. chickens, ducks and buffalos
C. chicken, ducks and geese
C. listening...hang