the doctor advised elsa strongly that she should take a good rest,but （it ）didn't help.
问题描述：
the doctor advised elsa strongly that she should take a good rest,but （it ）didn't help.
为什么括号里是用it不是用she?
答
这里的“it”指的是“she should take a good rest”这个意见,意思是“医生强烈建议elsa要好好休息,但是不起作用.