22. ______ I admit it is by no means an easy job, I won’t necessarily accept it.

A. As                     B. As long as              C. Since                 D. While 

23. My family was quite poor when I was at college, so I had to ______ for my life as a tutor.

   A. fight                 B. make                    C. struggle             D. survive

24. ——John has got a very good mark in the examination.

——            he looks so happy.

A£®No doubt          B£®No wonder              C£®No matter            D£®No good

25. The 2010 Shanghai World Exposition ______ with “Better city , Better life” as the theme will be the biggest ever event.

A. being held       B. holding                  C. to be held           D. having held