has he sent the letter?does he send the letter?did he send the letter?三句有何不同如何翻译
来源：学生作业帮助网 编辑：作业帮 时间：2024/06/17 01:40:13
has he sent the letter?does he send the letter?did he send the letter?三句有何不同如何翻译
他信已经发出?难道他送一封信?他才寄出的信?
has he sent the letter?does he send the letter?did he send the letter?三句有何不同如何翻译
他信已经发出?难道他送一封信?他才寄出的信?