1.whenIwasinhighschool,myteachertoldmethatlight_fasterthansound.A.traveledB.wastravelingC.travelsD.hadtraveled2.whenwegottothetopofthemountain,thesun__inthesky.A.havevisitedB.wouldvisitC.visitedD.havebeenvis
1.whenIwasinhighschool,myteachertoldmethatlight_fasterthansound.A.traveledB.wastravelingC.travelsD.hadtraveled2.whenwegottothetopofthemountain,thesun__inthesky.A.havevisitedB.wouldvisitC.visitedD.havebeenvisiting
3.Isthisthefirsttimeyou_Tokyo
A.havevisitedB.wouldvisitC.visitedD.havebeenvisiting
4.theinformationwaslateradmitted_fromunreliablesources.A.toberetrievedB.tohavebeenretrievedC.thatithasbeenretrievedD.thatitwasretrieved