Speaking of all the songs he has written I think this is probably his one.(·全国Ⅱ)A. be

问题补充：

Speaking of all the songs he has written，I think this is probably his one.(·全国Ⅱ)

A. better－known

B. well－known

C. best－known

D. most－known

答案：

A. better－known

B. well－known

(答案→)C. best－known

D. most－known

解析：根据语境all the songs he has written可知用最高级。