Directions:Readthefollowingpassage.Thepassageisfollowedbyseveralquestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA,B,CandD.Choosetheonethatfitsbestaccordingtotheinformationgiveninthepassage.Wenowthinkofchocolateassweet,butonceitwasbitter.Wethinkofitasacandy,butonceitwasamedicine.Today,chocolatecanbeahotdrink,afrozendessert,orjustasnack.Sometimesit’saningredient(配料)inthemaincourseofameal.Mexicansmakeahotchocolatesaucecalled
