i wonder how long ago this school_____.

i wonder how long ago this school_____.
1.started
2.was started
3.had started
4.had been stated
为什么?

I wonder how long ago this school_____.
本题选2.was started .本题的关键在于正确理解“start”的含义.根据题目要表达的意思应该是“我想知道这所学校是多久以前创办的.”因此,这里的start表示“创办,创建”,而不是“开始”的含义.
begin 和start都可表示“开始”,只能用于主动语态,不能用被动.但start除了表示“开始”之外,还可以表示“开办,创办”等含义,可以用于被动语态.而begin没有这种用法.如：He started the school in 1999.= The school was started by him in 1999.