6. What did they see in the valleys?

7. Why had they changed their caps,coats, gloves and trousers for T-shirt and shorts?

8. When did they eat supper?

9. What did Wang Wei do after supper?

10. What were Wang Kun doing when Wang Wei went to sleep?

The possible answers:

1. What was the season when Wang Kun and Wang Wei traveled there by bike?

It was autumn when they traveled there by bike.

2. What did they look like when they ride their bike in the mountain area?

　They looked like snowmen when they ride their bike in the mountain area.

3. What did the children do when they ride bicycles along the way?

　The children stopped to look at them when they ride bicycles along the way.

4. Why did the lake shone look wonderful?

　The lake shone liked glass in the setting sun.

5. When did they feel much warmer?

　They felt much warmer because they went down the hills.

6. What did they see in the valleys?

　They saw the colourful butterflies around them and many yaks, sheep eating green grass in the valleys.

7. Why had they changed their caps,coats, gloves and trousers for T-shirt and shorts?

They had changed their caps, coats, gloves and