Unit 7 Topic 2 Section D.pptpage1SectionTopic 2 Can you sing an English song?Unit 7 The Birthday PartyDpage21 --Can you...? --Yes, I can. /No, I can't.2 --What can/can't you do? --I can/can't...3 --What could you do ten years ago? --I could..., but I couldn't...Pair Workpage3 can'tcancouldn'tCan/Could for Abilitypage4QuestionsCanOrpage5Functionspage6Tom could pay ping-pong a little when he was two.Tom could play ping-pong a littl..