Weeachhaveamemory.That’swhywecanstillrememberthingsafteralongtime.Somepeoplehaveverygoodmemoriesandtheycaneasilylearnmanythingsbyheart,butsomepeoplecanonlyrememberthingswhentheysayordothemagainandagain.Manyofthegreatmenoftheworldhavegotsurprisingmemories.Agoodmemoryisagreathelpinlearningalanguage.Everybodylearnshismotherlanguagewhenheisasmallchild.Hehearsthesounds,remembersthemandthenhelearnsspeak.Somechildrenarelivingwiththeirparentsinforeigncountries.Theycanlearntwolanguagesaseasilyasonebecausetheyhear,rememberandspeaktwolanguageseveryday.Inschoolitisnotsoeasytolearnaforeignlanguagebecausethepupilshavesolittletimeforit,andtheyarebusywithothersubjects,too.Butyourmemorywillbecomebetterandbetterwhenyoudomoreandmoreexercises.51.Somepeoplecaneasilylearnmanythingsbyheartbecause_________.