Eating an egg ,a bread,an apple or a cup of tea for breakfast 为什么要用eating

a egg还是an egg Eating an egg ,a bread,an apple or a cup of tea for breakfast 为什么要用eating a egg和an egg哪个正确? eating an egg和eat an egg 请问有什么区别? 鸡蛋的英语是EGG,那么一个鸡蛋是A EGG还是AN EGG look,there is 这里选a egg还是is egg还是an egg?inthe box. egg前面用a,还是an? I want( )an egg for lunch.使用to eat还是eating? 请问为什么苹果和鸡蛋要用,an apple、an egg 而不是a apple、a egg This is () egg.() egg is big.A :a AB:an AnC:an The I want( )an egg for lunch.使用to eat还是eatingI want( )an egg for lunch.使用to eat还是eating? she ___already boiled an egg .she ___boiled an egg a minute ago.这里填什么?为什么? she____already boiled an egg.she ___boiled an egg a minute ago.填什么?为什么? a an 填空 .aeroplane .egga an 填空 .aeroplane .egg ---What's inside the boxes? ---( ) A.An egg B.Some eggs C.Some egg There is no _.A egg B eggs C an egg 为什么选B? usually a hen _____(lay) an egg at a time. I want( ) egg and ( )ice-cream.A:a ,an B:an,an C:an,some