treadmill

my dad bought us a new treadmill.we bought it second-hangd but it is very new.500 dollars but the original price is 800 dollars.sin dollars. op,i've got 81 4 english,71 for math,69 for chinese and 63 for science. my mom made a deal if i get at least all bend two,i get another dog too bad i din't i've studied really hard.my mom was kiddin that my dog should run the treadmill but my sister really wanted to do it but my maid stopped her in time i think.