PartⅡStructure(10minutes) Directions:Thispartistotestyourabilitytoconstructgrammaticallycorrectsentences.Itconsistsof2sections. SectionA Directions:Inthissection,thereare10incompletesentences.Youarerequiredtocompleteeachonebydecidingonthemostappropriatewordorwordsfromthe4choicesmarkedA）,B）,C）andD）.ThenyoushouldmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthecenter. 21.Generally,youshouldavoid----businessoveramealuntilyourhostgivesasignal.