【英语】He traveled to many mountain villages and saw many……

问题描述:

【英语】He traveled to many mountain villages and saw many……
He traveled to many mountain villages and saw many poor children out of school.This experience _______ his life.
A.would change
B.had changed
C.was to change
D.was changing
为什么答案是C不是A?同样是过去时,同样是表示将会发生的,为什么A就不行?

would一般与主语发生的时间点算起表示的将来,而experience已经成为了过去,只能用was to形式,你认为呢?