【itissunday.alittleduckcomestoacity.hedoesn'tliketobeathomeallthetime.nowheisveryhappysuddenly,acariscoming.itisrunningtoofast.thelittleduckisafraid,butheisverysmart.hejumpsoverfromthefrontofthecar】

　　itissunday.alittleduckcomestoacity.hedoesn'tliketobeathomeallthetime.nowheisveryhappy

　　suddenly,acariscoming.itisrunningtoofast.thelittleduckisafraid,butheisverysmart.hejumpsoverfromthefrontofthecartothebackofthecar

　　nowtheduckissittinginthestreet.thereisnothingwrongwuthhim.butheisveryangry.hethinks,"icannotletgo.iknowyourcarnumberis9186"

　　thelittleduckstandsupandgoestothepolicestation.hetellsthepolicethecar'snumber.verysoon,thepolicefindthecar.itsnumberis9186.later,thelittleducksmilesandsays"oh,imadeamistake."imaygetthewrongguy

　　1.Whatmistakedidtheduckmake?

　　2.给本文拟一个合适的标题