Is there （ ） “u” in the word “big” No,there’s（ ）“i”in it.填a或an或the

There is（ ）‘u’ in the word ‘uncle’.A.a B.an C./There is（ ）‘u’ in the word ‘uncle’.A.a B.an C./ There is _____“U”in the word “unhealthy”（用“a”还是“an”） There is ____“u”in the word your.（填a或an） There is ()uand()sin the word useful. There is ( )uand ( )s in the word us 改错：There is an u in the word us there is ( )u and( )n in the word aunt there is _m and_ u in the word menu. there is a u in the world ruler. There is ( ) u and ( ) r in the box.为什么? There is a U and anS in () use. There is{ } u in the word found and{ }letter is in the middle of this word Is there （ ） “u” in the word “big” No,there’s（ ）“i”in it.填a或an或the There is ___rin the world “run” There is ___''b___''u___''sin the worldbus” there is ____ u in the word hour A:a B:an C:the （尽量详细点） There is ( )“u”and（ ）“l”in the word “ruler”请说明原因 那不是i是l 字母u前用a还是an?There is ___ u in the word umbrella.用a还是an? 英语there is __ u in university.是填a还是an?字母u前何时加an?请举例说明。