the teacher told me the school __on the following morning

问题描述:

the teacher told me the school __on the following morning
A would be opened
B should be opened
C opened
D was opened
选哪个呢 为什么呀
可是书上答案居然是C

选A,句子前面用了过去式,从told一词就可看出,然后从句子后面的folowing day就可知该句应选过去将来时,备选答案中只有A符合条件,该句的意思是老师告诉我明天开学.