请帮指出错误并改正,再告诉我为什么错.
1.Tomisinfavorofgoingtothemovies,whilesinceJackinsistsonplayingbasketball.
2.Ihavelostmykeys;Ican'trememberwhereIleftit.
3.Today,AbrahamLinconwasconsideredasoneofthegreatestofalltheAmericanpresidents.
4.Thebookwhichboughtformebymyfathercostalotofmoney.
5.Doyouhaveanydifficultyforspelling?
6.TheUnitedKingdomisconsistedofGreatBritainandNorthernIreland.