【正文】
□ lights □ truck □ ducks □ chickens 1. Listen and tick the words you hear. 1. Which border of Laos is made by the Mekong River? 2. What did Wang Kun and his sister see when they cycled across the plains? 2. Listen to the tape again and answer the questions. The western border of Laos. They saw how mountains covered in trees. 3. Which is the best season to travel to Laos? Why? Autumn is the best season to tr