Circle the best optiom ( A , B , C or D ) to complete the passage below ----- Nội dung ảnh ----- Sa Pa is the wonderful destination for millions of visitors to go trekking - to spend time (17) __________ in the mountain for enjoyment. Coming to Sa Pa, visitors often take photos of beautiful (18) __________ terraced fields (fields with different levels like stairs) and local people. Although this place is so popular among travel lovers, it still (19) __________ the unique beauty as well as the unique local customs. Besides, they can enjoy the exciting atmosphere (20) __________ the open-air markets. Sa Pa truly deserves its international fame and is always a dream destination.
17. A. walk B. walking 18. A. mountain B. destination 19. A. keeps B. keep 20. A. beside B. on