用连词if,when,after,before填空.1._____Icametothecheck-out,IrealizedthatIhadnomoneywithme.2.WewillgototheSummerPalace_____itdoesn'train.3.Iwonder_____Ishouldwearahat.4.Ifoundyourcoat_____youleftthehouse.5.____

　　用连词if,when,after,before填空.

　　1._____Icametothecheck-out,IrealizedthatIhadnomoneywithme.

　　2.WewillgototheSummerPalace_____itdoesn'train.

　　3.Iwonder_____Ishouldwearahat.

　　4.Ifoundyourcoat_____youleftthehouse.

　　5._____youhelpedmewithmyEnglish,Iwouldn'thavefaildtheexam.

　　6.Healwaysputstheinterestsofothers_____hisown.Heisverykind.

　　7.Turnofftheswitch_____somethinggoeswrongwiththemachine.

　　8.Itwillbealongtime_____wefinishreadingthisbook.