Question

       the teachers in their school is about 200 and most of them are          teachers.

A．A number of ; women	B．A number of ; woman
C．The number of ; women	D．The number of ; woman

Answer 1

C解析:
a number of 表示大量…作為主語時(shí)相當(dāng)于復(fù)數(shù)形式，而the number of 表示…數(shù)量，因而作為主語時(shí)，相當(dāng)于單數(shù)形式，同時(shí)woman 修飾名詞時(shí)，變成復(fù)數(shù)形式，兩個(gè)都變，故選C