Mark the letter A, B, C or D to indicate the sentence that is best written from the words/phrases given.Câu hỏi if/ no taxis/ walk/ station. A. If there were no taxis, we would walk to the station. B. If there are no taxis, we will walk to the station. C. If there had been no taxis, we would walk to the station. D. If there are no taxis, we would walk to the station.