— Can I have an apple, Uncle Pal?
— . An apple a day keeps the doctor away.
A. It doesn't matter
B. It's a deal
C. You're wele
D. Help yourself
网友回答
A. It doesn't matter
B. It's a deal
C. You're wele
(答案→)D. Help yourself
解析：考查交际用语。根据答语中的后半句可知，D项“请自便”符合语境。A项意为“没关系”，用来回答sorry；B项意为“就这么定了”；C项意为“不用谢”，用来回答thank you，均不符合题意，故排除。句意：——Pal叔叔，我可以吃个苹果吗？——随便吃。每天吃一个苹果可以保持健康。故D正确。