【Memorytheysayisamatterofpracticeandexercise.Ifyouhavethewishandreallymadeaconsciouseffortthenyoucanquiteeasilyimproveyourability（33）_________(remember)things.But（34）__________________youaresuccessf】

　　Memorytheysayisamatterofpracticeandexercise.Ifyouhavethewishandreallymadeaconsciouseffortthenyoucanquiteeasilyimproveyourability（33）_________(remember)things.But（34）__________________youaresuccessfultherearetimeswhenyourmemoryseemstoplaytricksonyou.

　　Sometimesyourememberthingsthatreallydidnothappen.OnemorninglastweekforexampleIgotupandfoundthatI(35)_________(leave)thefrontdoorunlockedallnightyetIclearlyrememberlockingitcarefullythenightbefore.

　　Memory“tricks”worktheotherwayaswell.Onceinawhileyouremembernotdoingsomethingandthenfindoutthatyoudid.OnedaylastmonthforexampleIwassittinginabarbershop(36)_________(wait)formyturntogetahaircutandsuddenlyIrealizedthatIhadgotahaircuttwodays(37)_________(early)atthebarbershopacrossthestreetfrommyoffice.

　　Wealwaysseemtofindsomethingfunnyand(38)_________(amuse)inincidentscausedbypeople’sforgetfulnessorabsent-mindedness.Storiesaboutabsent-mindedprofessors(39)_________(tell)foryearsandwe’venevergottiredofhearingnewones.Unfortunatelyhoweverabsent-mindednessisnotalwaysfunny.Therearetimeswhen “trick”ofourmemory（40）_________ causeusgreattrouble.