there is ———“u” and ———“s“in the word ”usa“ A：a,a B：a,an

There is ( ) "s" and ( ) "u" in the word house.A.a;a B.a;an There is ___"R" and—— "U"in the word understand 填an 或a ———(这 There's 'u' and 'r' in the word 'umbrella'.A:a;an B:an;an C: 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 there is ——“h” in the word "hour" A a B an C the D / 单项选择1.There is ( ) "s" and ( ) "u" in the word "sun".A.a.an There is ( )"u" and ( )"l" in the word "uncle",an;an B.a;an 冠词练习用a,an,/There is __"U'',___"s"and__"e"in the word "usa"__ 用a,an填空 There is __"u" ___ "s" and ___ "e"in the word there is () u and ()s in the word “us” 填写a和an