The reason why they had to leave wasn't explained to us.为什么用

The reason why they had to leave wasn't explained to us.为什么用 They explained the reason to us why they had hated us before The reason why they__leave wasn't explained to us 中间的哪个空应该填哪 The reason why they__leave wasn't explained to us 中间的那哥空应该填哪 Wouldn't it be great if you explained the reason to us? I don't quite know the reason _______ he explained to me the reason(why\which) he explained There wasn't ___ in the room.So it wasn't ___ for us to work 英语翻译As my train wasn't due to leave for another hour,I had p the reason why i didn't go to meet The reason why I want to go is that I want to leave you alon 首字母填空：Her husband wasn't at home and she had to go to the h_