The president has told his friends that he is sick but will not admit it .A. in privateB.

问题补充：

The president has told his friends that he is sick but will not admit it .

A. in private

B. in secret

C. in public

D. in detail

答案：

A. in private

B. in secret

(答案→)C. in public

D. in detail

解析：短语辨析。 A.私下的；秘密的 B. 秘密的；私下的 C.公开的；当众 D.详细的。句意：总统曾经告诉他的朋友，他生病了但他不会公开的承认。故选C。