28. Look! A big bird is c_______ around in the air.

27. Today is her birthday, so we are going to c________ it with a grand party.

26. If that is the c______, you will have to work much harder.

25. London, Paris and Rome are c_________ cities.

24. The manager said he would go to London on b______ next month.

23. The aircraft was out of control then it crashed and b________ into flames, causing all the passengers to death.　

22. The BBC b_______ all over the world.

21. It is good for the health to b_______ deeply.

20. The difficulty of the problem c________ me to find a solution. Finally I found a way out.

Part 3: (page 21---30)

19. Have you c________ where to go for your holiday yet?