—How many are there in your school? — Twenty.A. woman teachers B. woman teacher C. women t

问题补充：

—How many are there in your school?

— Twenty.

A. woman teachers B. woman teacher C. women teachers

答案：

解析：句意:你们学校有多少女老师？20。many+可数名词的复数形式，teacher要加s，但woman和man在和其他名词组词的时候，表示复数概念时，也要变复数。故选C。