Mark the letter A, B, C, or D to indicate the sentence that is best written from the words/ phrases given.Câu hỏi know/telephone number/give her/ring A. I know her telephone number, I would give her a ring. B. If I knew her telephone number, I would give her a ring. C. To know her telephone number, I don't give her a ring. D. Knowing her telephone number, I didn't give her a ring.