I told your friend how to get to the hotel,but perhaps I __ havedriven her there.为什么选should不选could.The boss has given everyone a special holiday,so we __ go to work tomorrow.为什么选need not不选 can not

I told your friend how to get to the hotel,but perhaps I __ havedriven her there.为什么选should不选could.The boss has given everyone a special holiday,so we __ go to work tomorrow.为什么选need not不选 can not
I told your friend how to get to the hotel,but perhaps I __ have
driven her there.为什么选should不选could.The boss has given everyone a special holiday,so we __ go to work tomorrow.为什么选need not不选 can not

I told your friend how to get to the hotel,but perhaps I __ havedriven her there.为什么选should不选could.The boss has given everyone a special holiday,so we __ go to work tomorrow.为什么选need not不选 can not
I told your friend how to get to the hotel,but perhaps I should have driven her there.首先分析句意,我已经告诉了你的朋友如何到达旅馆,但我本应该开车载她去那里.should have done 表示本应该做某事而未做.而could侧重于能力,句子并不是说说话人没有能力开车载朋友去,而是说话人意愿造成的.
The boss has given everyone a special holiday,so we need not go to work tomorrow.老板给了每个人一个特别的假期,所以我们明天没必要去上班了.所以用need not,不需要.can not 是指不能,往往是指有强制力迫使,你明天非要去上班,也没有人会拦你.