Five students from different schools took part in the English contest last Saturday.A. hu

问题补充：

Five students from different schools took part in the English contest last Saturday.

A. hundred of

B. hundred

C. hundreds of

D. hundreds

答案：

A. hundred of

(答案→)B. hundred

C. hundreds of

D. hundreds

解析：hundred 前不能用数词修饰，没有数词时可用短语hundreds of 。所以答案选B。