来自何立明的问题
Hurryuporbythetimewereachtheboxoffice,allthetickets_____outA.willbesoldB.aretobesoldC.shouldhavebeensoldD.willhavebeensold
Hurryuporbythetimewereachtheboxoffice,allthetickets_____out
A.willbesoldB.aretobesold
C.shouldhavebeensoldD.willhavebeensold

