问题补充：
—How manyteachers are there in your school?
—themover two hundred.
A. woman; The number of; is
B. women; The number of; is
C. woman; A number of; is
D. women; A number of; are
答案：
A. woman; The number of; is
(答案→)B. women; The number of; is
C. woman; A number of; is
D. women; A number of; are
解析： 略
