Sam is a swimmer. He can swim very.A. well goodB. good wellC. good goodD. good fine

问题补充：

Sam is a swimmer. He can swim very.

A. well, good

B. good, well

C. good, good

D. good, fine

答案：

A. well, good

(答案→)B. good, well

C. good, good

D. good, fine

解析：考查形容词和副词。句意为：山姆是一个很好的游泳者，他游的很棒的。Good是形容词，只能做定语修饰名词或做表语；well多做副词，用来修饰动词，做形容词时只能表示人的身体健康；fine是形容词，指人的品性好或天气好。故选B。