问题
选择题
The number of teachers in our school _______ greatly increased last term.A number of teachers in this school ______from the countryside.
A．was;is
B．was;are
C．were;are
D．were;is
答案
答案：B
The number of指：“……的数目”，它所修饰的主语的谓语动词用单数：A number of，它所修饰的主语的谓语动词用复数，故选B