6n2D/v:h4B2G There is ______ “h ” , ______ “o”，_______“u ” and ______ “r ”;y1q*C7R*s6t/f._
in the word “hour ”.;y1q*C7R*s6t/f._
A. an ; an ; a ; an;y1q*C7R*s6t/f._
B. a; an; a; a;y1q*C7R*s6t/f._
C. a; an ; an; a;y1q*C7R*s6t/f._
D. an; an ; an ; an;y1q*C7R*s6t/f._