翻译There is an “f” and a “u” in the world “four”

翻译There is an “f” and a “u” in the world “four” There is ___ "f"and __"u"in the word "four".A.an;a B,a;aC,an there is ()“m”and()“u” in the world “music”填an或a 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 there is an ''f'' and a ''y" in the world "fly''. there is __"f"and ___"u"in the word "fun".用a,an填空 there is o u and r in the world our 打空格中间用an 还是a There is ( )"u" and ( )"l" in the word "uncle",an;an B.a;an 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 ( )“u” and ( ) “h” in the word “hour”. A.a a B.an a