why'd she leave? why‘d she return? why后面为什么要加d呢?

Why'd she leave?为什么不是Why she leave? why'd she leave? why‘d she return? why后面为什么要加d呢? I couldn't understand（ ） the baby alone.A.why she left B.why did she leave C.why had she left D.why she had left 《gossip girl》中说S：“why'd she leave?why‘d she return?”中的why’d 是什么的缩写?是would ,could,还是 did, Why She Had To Leave 歌词 Why did you leave 宾语从句的选择题目,9.I can't understand _______ the boy alone.A.why she let B.why did she leave C.why had she left D.why she had left 10.He asked his father _______.A.where it happens B.where did it happen C.how it happened D.how did it happ I can't understand_____the boy along A why she left B why did she leI can't understand_____the boy along A why she left B why did she leftC why had she left D why she had left I can't understand ( ) the boy alone last night. A.why she left. B why did she leaveC why has she left. D why she has left 22.The policeman asked the small girl__.A.why she was crying B.why was she crying C.why she is crying D.why is she crying Why don't you leave Why did you leave me why do you leave me? Why she is sleeping ＷＨＹ? why? WHY? WHY?