They havn't decided when---for shanghai

They havn't decided when---for shanghai I haven't decided when to leave for shanghai 同义句 Mr.Green hasn't decided when he leaves for Canad Mr.Green hasn't decided when he leaves for Canada. it has been decided ____they will leave for shanghai.填when还是 They have decided ____ they will leave for New York.答案是when, 英语翻译I don't know when( )for Shanghai.(leave) They haven't decided on the place for skiing.=They haven't d when they g_______ to Shanghai 英反意疑问句的问题when they will start hasn't been decided yet,______ When and where go for the holiday hasn't decided.为什么用现在完成时? They haven't decided on the place for skiing 改同义句