Lesson7 　　Detectiveswerewaitingattheairportallmorning.TheywereexpectingavaluableparcelofdiamondsfromSouthAfrica.TwomentooktheparcelintotheCustomsHouseafterthearrivaloftheplane.Twodetectivesopenedit.Theparcelwasfullofstonesandsand. 　　(A)Detectiveswerewaiting;Theywereexpecting;detectiveswerewaiting;otherswerewaiting;twodetectiveswerekeepingguard. 　　(B)1Whentheplanearrived,someofthedetectiveswerewaitinginsidethemainbuildingwhileotherswerewaitingontheairfield. 　　2Whentwoofthedetectivesopenedtheparcel,twootherswerekeepingguardatthedoor. 　　(C)1Iwasgettingintomybathwhenyoutelephonedme. 　　2IwasreadingHamletwhenyousawmeinthelibrarythismorning. 　　3Iwassayingthatyoumustseethenewfilmwhenyouinrerruptedme. 　　(D)1wasleaving;arrived2worked/wasworking;wassitting/sat3waswalking;met4wasreading;heard5waspreparing;set/wassetting6dropped;spoke 　　难点： 　　1Hegaveallhisbooksaway. 　　2Shewokethechildrenupearlythismorning.