he said he ()the difference between right or wrong.

问题描述:

he said he ()the difference between right or wrong.
a:can't tell b:shan't tell ccould' tell d:won't tell
?

C
时态一致,tell the difference between A and B 区别 AB:can't和could‘T怎么区别啊?can't 为现在时,与said不吻合,couldn't为过去时,与said一致。