3、nountilIwasfifteenyearsold.5.Whatyousaidcouldn’tbetrue.6.CanItakethisseat?7.CouldIuseyourphone?8.Yes,ofcourseyoucan.二、选择题1.Atthattimewethoughtthestory_____notbetrue.A)couldB)mustC)can2.You___theworkbetterinthefuture.A)coulddidB)candoC)coulddo3.Theroomisdirty;it____cleaned. A