27. The old man died five years ago.

　 The old man ____ _____ _____ ____ five years ago.

26.There are many differences between a shark and a fish.

　 A shark ____ many differences _____ a fish.

25.I don’t know when I shall start the work.

　 I don’t know when ____ ____ the work.

24.We didn’t understand what he said.

　 We didn’t understand _____ _____.

23.He paid 280 yuan for the bike.

　 He ____ 280 yuan ____ the bike.

22.She’s been a League member for over two years.

　 She ____ the League two years _____.

21.The watch is too expensive for me to buy.

　 The watch isn’t ____ ____ for me to buy.

20.The boys _____ Bondi Beach several times.

A. have got　　 B. have arrived　　 C. have been to　　 D. come to

19. You can always find surfers out ____ the waves.

A. ride　　 B. riding　　 C. to ride　 　　D. rode

18. They have traveled to many cities in China ______.

A. yet　　 B. just　　　 C. far away　　　 D. so far