(1).Leaveyourkeywithaneighbour__youlockyourselfoutoneday.A.eversinceB>evenifC.soonafterD.incase(2).Whendidheleaveclassroom?Heleft___youturnedbacktowriteonblackboard.A.thetimeB.untilC.theminuteD.before(3).___weknow,the

　　(1).Leaveyourkeywithaneighbour__youlockyourselfoutoneday.

　　A.eversinceB>evenifC.soonafterD.incase

　　(2).Whendidheleaveclassroom?

　　Heleft___youturnedbacktowriteonblackboard.

　　A.thetimeB.untilC.theminuteD.before

　　(3).___weknow,thereare107elementsfoundinnature.

　　A.AslongasB.justasC.SofarasD.Forall