问题描述：
I don't know when we should leave for Nanjing.=
L don't know when ___ _______ ________Nanjing
Mr.Mark left Shanghai two months ago=
Mr.Mark has _____ ______from Shanghai for two months
L don't know when ___ _______ ________Nanjing
Mr.Mark left Shanghai two months ago=
Mr.Mark has _____ ______from Shanghai for two months
问题解答：
我来补答展开全文阅读