All Flights ______ BECAusE oF thE tErriBly BAD wEAthEr, thE pAssEngErs hAD to wAit At thE Airport.
A．hAD BEEn CAnCEllED
B．hAving CAnCEllED
C．hAving BEEn CAnCEllED
D．wErE CAnCEllED