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答案选D.
（1）good用作形容词,要放在名词前修饰名词.
e.g. good boy
它们也可以放在动词be之后,起系表作用.
e.g. The book is very good .
（2）well作形容词用时,只能放在动词之后,意思是“健康、妥善”.不能放在名词前面修饰一般物品.
e.g. I hope you are well.
（3）当作问候语时,常用well.
e.g. How are you ?
I don’t feel very well.
（4）请记住well 经常用作副词,good一般只作形容词
better是 good,well的比较级形式
best是good,well的最高级形式