用a/an或者the填空.
HanMeimeiis()ChinesegirlandLucyis() Englishgiry.what's that? It's( ) cake.Is this ()eraser?No, it's () pencil-box.thi is( ) old bookl am from ()U S AIs that ( )orange? No, it's( )eggIt isn't ()apple.This is()toy and that is ()umbrella.I have ()pencil,( ) book and( )rulerinmyschoolbag.we are not in ( ) same class.