27．Shanghai Expo has been building an Expo Village for the participants but other choices

问题补充：

27．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

答案：

A. accessible

(答案→)B. available

C. affordable

D. Approvable

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