这个作业怎么做?阅读理解.阅读理解.OneeveningIwentoutandleftmy17-year-oldsonandhisgirlfriendinchargeofhis8-year-oldbrotherand4-year-oldsister.Ileftwithcompleteconfidencethattheolderchildrenwould

　　这个作业怎么做?阅读理解.

　　阅读理解. OneeveningIwentoutandleftmy17-year-oldsonandhisgirlfriendinchargeofhis8-year-old

　　brotherand4-year-oldsister.Ileftwithcompleteconfidencethattheolderchildrenwoulddoa

　　wonderfuljobofbabysittingtheyoungerchildren.Later,IdiscoveredthatIwascompletelywrong.

　　Ihaddecidedtoreturnhomeearlierthanplannedsothatmysonandhisgirlfriendcouldgoout.I

　　calledhomewiththishappynews．Butinsteadofhearinghischeerful,gratefulvoiceontheotherend

　　oftheline,allIheardwasthesoundofatelephoneringing.

　　Itwas,Ishouldpointout,after10p.m.,whenthetwoyoungerchildrenshouldhavebeeninbed,

　　andwhenthetwoolderchildrenshouldhavebeenansweringthephone."I'llgivehimalesson,"Isaid.

　　Idecidedtheymustbeoutside.Whytheymightbeoutsideat10:30onawinternightIhadnoidea,

　　butitwastheonlyexplanationIcouldcomeupwith.

　　Finally,indesperation(绝望),Icalledhisgirlfriend'shouse.Hisgirlfriendanswered."Yes,"shesaid

　　brightly,"He'srighthere."

　　Hecameonthephone．Iwasnotmyusualcalm,patient．Afterall,oneoftherulesofsurvivalfor

　　modernparentsisthatyoucan'ttrustmodernteenagers."Wherearethechildren?"Isaid.Hesaidthey

　　werewithhim.Theyhaddonenothingwrong.Mysonhadtakentheyoungerchildrenovertohisgirlfriend'shousejustforicecreamandcake.Well,itturnsoutthatIshouldn'thavebelievedit.Itwasonlypart

　　ofthetruth.

　　ThefollowingSaturdayeveningwewereatmyparents'home,celebratingmybirthday.Myoldest

　　songavemethechildren'sgifts-aseriesoflovelycolorphotographsofmychildren,dressedintheirbest

　　clothes,andwearingtheirmostwonderfulexpressions.Theyarepicturestotreasurealifetime,alltaken

　　bythefatherofmyson'sgirlfriend.1.Theauthorwentoutandlefthereldestsoninchargeoftheyoungerchildrenbecause_____.A.sheknewthathisgirlfriendwasagoodbaby-sitter

　　B.shebelievedhecouldtakegoodcareoftheyounger