哪些单独字母前面加an,比如例题：There is an “h” and a“u” in the world "hous

哪些单独字母前面加an,比如例题：There is an “h” and a“u” in the world "hous 26个英文字母中,哪些是元音开头要加an哪些是辅音开头加a 如There is an "h" and a "u" in 翻译There is an “f” and a “u” in the world “four” there is ()“m”and()“u” in the world “music”填an或a There is ( )“u” and ( ) “h” in the word “hour”. A.a a B.an a 为什么不是There is a (h) and an (u) in the word (hour). There is ( )"u" and ( )"l" in the word "uncle",an;an B.a;an there is o u and r in the world our 打空格中间用an 还是a there is -------"r" and -----"u"in the word ruler A an,an Ba 选择 There is ( )"a" and ( ) "u" in the word "aunt".A:a a B:an There is ( )"l" and ( ) "u" in the word "luck" A.a.an B.a.a There is ( ) "s" and ( ) "u" in the word house.A.a;a B.a;an