To go to Beijing by train from here is not possible.(改为同义句)

To go to Beijing by train from here is not possible.(改为同义句) __________ __________ __________
一、改写句子.
1.To go to 　　Beijing　　 by train from here is not possible.(改为同义句)　　
__________ __________ __________ go to 　　Beijing　　 by train from here.
2.He couldn't answer this question just now.(改为同义句)　　
He __________ __________ __________ answer this question just now.
3、
Zhalong Nature Reserve is very special.(对very special提问)　　
__________ __________ Zhalong Nature Reserve?