There are plenty of in our school. They work very hard. A. woman teachersB. woman teacher

问题补充：

There are plenty of in our school. They work very hard.

A. woman teachers

B. woman teacher

C. women teachers

D. women teacher

答案：

A. woman teachers

B. woman teacher

(答案→)C. women teachers

D. women teacher

解析：句意：我们学校有许多女老师。他们工作非常努力。Woman做定语修饰名词时，其词形要随着被修饰词的单复数进行变化，故选C。