Father___for London on business upon my arrival,so I did not see him.A.has left B.leftC.was leaving D.had left 为啥不用过去完成时,爸爸离开不是在我没看到他之前吗?不是过去的过去吗?为什么选B(⊙o⊙)?

Father___for London on business upon my arrival,so I did not see him.A.has left B.leftC.was leaving D.had left 为啥不用过去完成时,爸爸离开不是在我没看到他之前吗?不是过去的过去吗?为什么选B(⊙o⊙)? london London,Britain 英译汉 London London Eye LONDON,UK London hotel It is said that his father___for several years.A had died B has been dead C died D has dead选哪个啊 为什么呢. London (Live In London,1986) 歌词 英语翻译Nick ____________in London. 英语翻译England__soon__the__ __in London live in london是什么意思 London dry gin Glbson's London dry London Chinese Radio是什么 英语；School in London what is london like 英语翻译London Hounslow Borough