it's two days since he left shanghai改为同义句he's___ ___ ___ shanghai since two days ago

it's two days since he left shanghai改为同义句he's___ ___ ___ shanghai since two days ago it's been 39 days since you It’s hard finishing the work in two days.改错 Where () you two days ago?It's a secret. it has been two days since I started study.这句子对吗? It's two years since he left his hometown.since 为什么不能换成after 请问It's been raining since two days ago（两天前就开始下雨了） 这句话是不是现在完成进行时?其中的's是has吗?还是is? it takes two days 和it spends two days区别 3 （ ）It is two days since I____the book.A.has had B.has bought C.bought D.buy I have been in Nanjing---A.for two days agoB.two days agoC.since two daysD.since two days ago应该选择哪个 Paul left Canada two days ago.(改为同义句）Paul___Canada since two days ago. Paul left Canada two days ago.改为同义句.Paul________________Canada since two days ago. 1 He came to our village two years ago.=He our village since two years ago.2 He left home three days ago=He home for 3 days.3 I bought the watch 2 weeks ago=I the watch since 2 weeks ago.4 It is 5 days since I borrowed the book=I the book for 5 days. She has fallen ill since two days ago.(改错) He has left Beijing since two days ago改错 He has left Beijing since two days ago.改错急 It's two years since I smoked.怎么理解这个句子? It's over two years since I have become a teacher改错