15. came up with　　　　　　　　　　　　

14. adapt to

13. What caused the accident　　　　　　　

12.couldn’t/can’t have gone

11. Seen from the top of the hill　　　　　　

20.making fun of

(8)参考答案

19.The moment I saw him

18.To make full use of

17.whether they can finish　

15.have been on good terms with

gratulated you on