Student or Learner
Which preposition is correct in the sentence
I bought this hat for one dollar at/in a sale.
Which one do you think is correct? You have posted several of these questions and so far we have happily simply provided the answers for you (not something we do very often!)
However, it's time for you to do some work.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.