He _ leave school by his father’s illness.A.was made B.was m

He _ leave school by his father's illness.A.was made B.was making C.was made to

选择C.
这是一个被动语态的句子,它的主动语态可以是：
His father's illness made him leave school.
在主动语态里,我们用使役动词make,它的用法是：make后面加宾语加上动词不定式,表示“使某人做某事”,这时动词不定式是不带to的,即make sb. do sth.
在被动语态里,动词make变成被动的时候,这个动词不定式就要带上to了,所以这道题目选择C.这句话可以描述我的状况：
I was made to give up university by my father's illness.
My father's illness made me give up university.
希望我能帮助你解疑释惑.