【题目】 __________not for the support of the teachers,the student could not overcome her difficulty.
A.It were
B.Were it
C.It was
D.Was it

【答案】B
【解析】句意：要不是老师的支持，那个学生就不能克服困难。这是一个虚拟条件句，虚拟语气中，be动词统一用were；虚拟语气的省略形式主要是把if省略，同时把were/should/had提前，即Were /Should/ Had I...，故选B。