Youlooknotabitolderthanyoudid5yearsago.Howdoyou__________soyoung?
A、changeTheworld’ssmallestbaby,a__________girlweighedjust24gramswhenshewasborn.
AnA4sizedpanel(太阳能板)putontothebackofajacketcosts__________US$15.Itcould__________acellphoneduringasummerwalk.
You__________putyourcomputerinyourbedroom.
Wherewas__________youmetwiththefamousscientist?
We________intheneighborhood.
