22. In order to ________the safety of the people in the stricken areas, the Chinese government reopened a series of investigations and meanwhile asked WTO for assistance.

A. promise          B. strengthen         C. concern               D. ensure

23. I wanted to have him ____the job, but he had it _______instead.

A. does, be done    B do; done               C. to do; doing           D. to do; done

24. Shanghai Expo has been building an Expo Village for the participants, but other choices will also be ____ if the Expo Village does not satisfy their needs£®

A£®accessible          B£®available                 C£®affordable            D£®approvable