21. You’d better not disturb me, I ____ letters all the morning and have written six so far.

( )55. When writing about qualifications, applicants are advised to provide a detailed description of their studies and work experience.

29. He is a man of great experience, ____ much can be learned.

3.

50.You choose   50   to decide which activity to cut down.

9.

22. The teacher didn’t seem to be satisfied with the examination results. ____.

18. It’s no good ____. You just have to put up with all these.

(  )12. Jane’s wedding dress was designed by a leading fashion shop.

Conversation 28. 

( )54. Companies are hiring more foreign employees because they have difficulty finding qualified personnel at home.

19. You ____ have seen Jane in her room last Monday. She’s been out of city for a week.