I felt sorry that i () (help) her that time .括号里是用did not 还是could not?
问题描述：
I felt sorry that i () (help) her that time .括号里是用did not 还是could not?
答
didn't
答
用did not
答
did not 表示确实发生的事情（没有帮）
could not help表示虚拟语气,原句可写为I felt sorry that I could help her that time.
答
看表达什么意思咯，did not表示：我很抱歉我没有帮她，其实是能帮上她的。could not表示：我很遗憾我帮不了她，实际上市真的帮不上她