Robotsaresmart
Withtheircomputerbrains,theyhelppeopleworkind__71___placesordodifficultjobs
Somerobotsdoregularjobs
Bobby,themailcarrier,bringsmailtoalargeo__72___buildinginWashingtonD
Heisoneof250mailcarriesintheUnitedStates
Leachim,whoweighstwohundredpoundsandissixfeett__73___,hassomeadvantagesasateacher
Oneisthathedoesnotf__74___details
Heknowseachchild’sname,thep__75___namesandwhateachchildknowsandneedstoknow
Inaddition,heknowseachchild’spetsandhobbies
Leachimdoesnotm__7___mistakes
Eachchildgoesandtellshimorhername,thendialsanidentificationnumber
Hiscomputerbrainputsthechild’svoiceandnumbert__77___
Heidentifiesthechildwithn__78___mistakes
Thenhestartsthelesson
AnotheradvantageisthatMr
Leachimisflexible
Ifthechildneedsm__79___timetodotheirlessonstheycanmoveswitches
Inthiswaytheyc