which option is correct in the following sentence?
I ___ for my exam all morning so I was really upset when I didn't do well.
b) had revised
I would say that both options make sense. How can I understand whether I have to use past perfect (which I use for a sequence of events which happened in the past, therefore
I had revised for my exam and I was really upset) or past simple (which I use for something that happened in the past, therefore
I revised for my exam...) in such cases?
Does that so (
so I was...) in the sentence make me somehow understand that I should opt for
past simple, which claims to be the correct answer?
Thank you for your attention!