There is a (h) and an (u) in the word (hour).这句英文对吗

There is a bed,( )and( ) 为什么不是There is a (h) and an (u) in the word (hour).而是There's an (h) and a (u) in the word (hour).Thank you~ There is ( )“u” and ( ) “h” in the word “hour”. A.a a B.an an C.a an D.an aThere is ( )“u” and ( ) “h” in the word “hour”.A.a a B.an anC.a anD.an a There is a (h) and an (u) in the word (hour).这句英文对吗 there is a key and a book There is( )hand( )uin the word house为什么“h”前用“an”,“u”前用“a”? Jack always works hard and he sets a good e( ) for us.Where there is a h( ),there is a way. there is a desk and two chairs ( )the desk,there is a ( )and some ( ). there is a pencil-case and some is there a health and safety committee 急.现在就要.I h( ) a nice h( ) .There are t( ) bedrooms in my home .There is a l( )room ,a k（ ）,a d( )room and a bahroom .My bedroom is s( )and n( ).There is a p( )bed ,a b ( )desk and an o ( ）chair.Iusuallym( )the bed ,mop the f( )and c( There( )(is/are)a cat and (There( )(is/are)a cat and ( )(a/an)elephant There is a mother and a father还是There is a mother and father The roof is a triangle. And there is a（ ） There is ( ) 'u' and ( )'h'in the word 'hour' A an,a B an,an C a,a D a,an There is a pen and a pencil 还是There are a pen and a pencil There's () h in the word hair and () h is the first letter of the word.A.an;the B.a;theC.an；/