Chọn đáp án đúng: The local people still use traditional farming methods which have been used for hundreds of years

19.16. The local people still use traditional farming methods which have been used for hundreds of years.
A. old
B. new
C. modern
D. special
20.17. I saw this old film when it first came out in 1997. 
A. produced
B. became available
C. planned
D. selected
21.18. They live in a ger which keeps them cool in summer and warm in winter.
A. cottage house
B. tent
C. small village
D. market
22.19. We move two or three times a year to look for new pastures for our cattle.
A. grasslands
B. paddy fields
C. valleys
D. hills
23.20. Some people think that country folk are friendlier than city folk.
A. people
B. peoples
C. songs
D. atmosphere
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