几个简单的过去完成时
1.Aftertheparty,someofthestudentspickedupalltherubbishthat__________ontheflooroftheball.
A.hasbeendroppedB.hasbeenfallen
C.hadbeendroppedD.hadbeenfallen
2.----DidyouseeMrSmithwhenyouwereinFrance?
----No,whenI________France,hehadgonetoChina.
A,hadarrivedtoB.arrivedtoC.hadgonetoD.gotto
3.Thepopsingers_________whenIgottothemusichalllastnight.Whatapity!
A.haveleftB.wereleftC.hadleftD.left
4.They________sincethefactoryopened.
A.hadworkedhereB.haveworkedhereC.workedhere
5.Beforethebosscameback,theworkers_________thecar.
A.repairedB.hasrepairedC.willrepairD.hadrepaired