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