【求英语大神帮我解析一下这篇英语阅读Iliketakingphotosverymuch.OnceItravelledbyship___1___acloudymorning.Itwasintheafternoon___2___theweatherturnedfine.ThereforeIwantedtotakesomephotos.Iwaslookingaroun】

　　求英语大神帮我解析一下这篇英语阅读

　　Iliketakingphotosverymuch.OnceItravelledbyship___1___acloudymorning.Itwasintheafternoon___2___theweatherturnedfine.ThereforeIwantedtotakesomephotos.IwaslookingaroundandIsawnexttomealovelylittlegirl___3___sitonherfathersshoulders.___4___wasluchyformetomeetsuchaperfectmoment—thegirlwassmilingandthesurroundingviewwasbeautiful.

　　WithoutthinkingItookapicture___5___thelittlegirlatthatmoment.Hermotherwassurprisedthata___6___strangewasphotographingherdaughter.IexplainedthatIwasmovedbythatsightandshowedthem___7___photoonmydigital数字的camera.Theyloveditverymuch.IsaidIcouldemailittothemwhenIgothome.

　　Finallytheygave___8___theiremailaddress.ThenextdayIsentthemtheirdaughtersphotoasI___9___promise.ThismorningIreceivedamessagebacksayingtheyaregratefuland___10___theyareveryhappywiththelovelyphotooftheirdaughterandalovelymemoryoftheday.

　　答案

　　1.on2.that3.sitting4.It5.of6.stranger7.the8.me9.hadpromised10.that

　　求大神帮我解析一下答案解析,为什么要这么填?