英语纠错,说这两个问题答非所问，错误百出，可我看不出啊，求各位英语大师帮忙，谢了啊！

apple后加s
I'm 改为This is

which kind of fruit .. apples
this is lucy

who's that? It's Lucy.

which fruit do you like-what fruit do you like?

Apple.

What kind of fruit do you like?I like apple.

who are you ?I'm Lucy.
水果是不可数名字，所以不能用which

第一个要么单纯回答apple，要这样说apple就要用复数。
第二个 如果是在接电话，就说this is Lucy.若果不是本人，回答别人问，用it is Lucy.

which fruit do you like?I like apple.
你喜欢哪种水果，我喜欢苹果。
名词不能单独用，an ,a,the或者复数。
这边用复数。apples.

who's that?I'm Lucy.
电话用语，“我是”一定不能说，i am，只能是this is。