John'ssuccesshasnothingtodowithgoodluck.Itisyearsofhardwork__________hasmadehimwhatheistoday.
A.why B.when C.which D.that正确答案D
John'ssuccesshasnothingtodowithgoodluck.Itisyearsofhardwork__________hasmadehimwhatheistoday.
A.why B.when C.which D.that正确答案D