7、分,满分15分)()21.IntheUnitedStates,ThanksgivingDayison__________fourthThursdayin__________November.A.the;不填B.the;aC.不填;theD.a;不填()22.—Did you and your parentsenjoyyourstayinSanYa lastweek?—Yeah,__________we had!A. what afun B. howgreat funC.whatfunD.howagoodtime( )