6、downstairsuntilthewindowhadtobeshut.(P2)我一直等到非关窗不可的时候才下楼去。not...until...意为:____________,在这个句型中,主句的动词必须是终止性动词。直到……才【即学即练】We____tobed____midnightandhadtogetupat4am,sowewereexhausted.A.went;untilB. didn’tgo;untilC.go;at D. didn’t;atB4....;itwasthefirsttimeinayearandahalfthatI’dseenthenightfacetofac