这几句英语的区别,我想知道为什么要填括号里的那个词:
1.Isthisthefactory(that)youvisitedtheotherday?
2.Isthisfactory(theone)someforeignfriendsvisitedlastFriday?
3.Isthisthefactory(where)heworkedtenyearsago?
还有就是,如果填theone的话,是不是事物在上文提到过的?