There is ________ “u” and ________ “h” in the word “hour”.
A:a; a
B:an; an
C:a; an
D:an; a
—How much do I o____ you, Sir?
—Well, it's $5.50 plus tax. Thank you.
观察如图的漫画,漫画中人物的言行说明了( )