GRAMMAR求助He left his house,never to return.为什么是to return而不是r

GRAMMAR求助He left his house,never to return.为什么是to return而不是r The husband left his wife,never to return. ( ) never to return ,he left quietly at midnight .用determind He left the place,____ never to return.空里填的是determined 想知道这里 为什么是He says that he will pay back the money to me 而不是return his father left home ten years ago,never to return 后面的非谓语怎么理 是return sp.还是return to sp. he will return back to his homework next week 改错 _____ he will return to his native land. He will return to london. so they left Britain,to which they were never to return return to,return from,return ticket区别