I like apple,apple为什么不用加an

I like apple best.对apple提问 apple round,apple red,apple jauce i like eat是什么 I like apple 和 i like the apple 哪个对 i like an apple of I like apple,apple为什么不用加an I'd like an apple对an apple提问 I like an apple.对an apple提问 I would like one apple对one apple画线提问 I like apples.为什么apple加s 连词成句 like,an,I,apple how ( )you?答语:I like apple apple Apple apple I like apple.和 I like apples.哪个才对? 是I like eating apple还是I like eating apples 像I like the apple.变she like the apple.这样说对吗 像I like the apple.变she like the apple.这样说对吗