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----- Nội dung dịch tự động từ ảnh -----
15. Can anyone swim across this
within 30 minutes?
A. valley B. river
C. waterfall D. cuisine
16. Can you name some famous tourist
in Vietnam?
B. nature C. cuisine D. travel items
A. attractions
17. We
get up early to be at the campsite in time.
A. can
B. must
C. can't
D. mustn't
18. You
travel alone to the mountain. Always go in a group.
A. must
B. mustn't C. do D. don't
19. You
take a lot of warm clothes when you go to Sa Pa in winter
A. must
B. mustn't C. canD. can't
20. We have a lot of
near our house causing pollution.
A. factorys
B. factores
C. factories
p. factoris
21. There are a number of interesting
at my party.
A. people
B. persons
C. peoples