24. It’s no use ______ me at the office this week because I’m ______.

　 a. to ring, on my leave　　 b. to ring, at leave　　

c. ringing, in holidays　　 d. ringing, on holiday

23. ______ is worth doing at all is worth doing well.

　 a. That　　　 b. Which　　　 c. Whatever　　　 d. If

22. The manager of the company said they should have prevented such silly mistakes ______.

　 　a. occurring　　　 b. being occurred　　　 c. to occur　　　 d. from being occurred

21. You can hardly imagine Bob ______the housework by himself.

　 a. do　　　 b. have done　　　 c. to do　　　 d. doing

20. They didn’t like him at first, but they ended up ______ the praises of him.

　 a. to sing　　 　b. singing　　　 c. and sang　　　 d. sung

19. ---The old lady has been sad since her husband died.

　 ---Yes, she needs ______.

　 a. being comforted　　 b. comforting　　 c. be comforted　　 d. to comfort

18. She looks forward every spring to ______ the flower-lined garden.

　 a. visit　　　 b. paying a visit　　　 c. walk　 in　　　 d. walking in

17. ---I must apologize for ______ ahead of time.

　 ---That’s all right.

　 　a. letting you not know　　　 b. not letting you know

　 c. letting you know not　　　 d. letting not you know

16. How about the two of us ______ a walk down the garden?

　 a. to take　　　 b. take　　　 c. taking　　　 d. to be taking

15. While shopping, people sometimes can’t help ______ into buying something they don’t really need.

　 a. to persuade　　 b. persuading　　 c. being persuaded　　 d. be persuaded