【導(dǎo)讀】Whatisthis?Whatisthat?Let’splay!Let’ssing!A:Whatis________?B:It’sa________.A:What_____?these. A:What_____?these. A:Whatare?B:They're.A:Whatare?B:They're.A:Whatare?B:They're______.A:Whatare?B:They're_____________.A:Whatare?B:They're_______.A:Whatare?B:They're.Let’spractice.A:Look!B:They’re_______________.B:No,Theyaren’t.They’re______________.A:Yes,They’re______________.A:Sure.B:_______________.Seeyounexttime!