when he leave 和when he is leaving区别

he is leaving for Shanghai.where does he leave 和where is he He'll leave work 和 He'll will be leaving work的区别 when he will leave is none of my business He is the last person --- (leave) 填 to leave 和 leaving 感觉都行啊 when is he……和when does he……怎么区别用is还是does? when is your birthday?和when was he born?有什么区别 判断Jack,go and ask Eric when he is leaving .We should see him 单句改错1.How long is he leaving?2.Show your photos to us when y I want to know when he is leaving for New York tomorrow为什么用i --- When did he leave the classroom? when---he leave for the city?he---- next week "when are we leaving"为什么不是"when do we leave"