问题
选择题
About _______ students in this college will be the volunteers of the World Expo.[ ]
A. three hundred
B. hundred
C. hundreds of
D. hundreds
答案
答案：A
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About _______ students in this college will be the volunteers of the World Expo.[ ]
A. three hundred
B. hundred
C. hundreds of
D. hundreds
答案：A
