知识问答
最佳答案：She had bought the tickets before i went there.因为”我赶到”用的是过去式,而买票又发生在”赶到”之前,所以用过去
最佳答案：If so,please refer to the following flight information based on your e-mail and
最佳答案：have you bought the air ticket already?/ have you bought the air ticket yet?is t
