They are talking so warmly and it looks they had been old friends.A. even ifB. ifC. as th

问题补充：

They are talking so warmly and it looks they had been old friends.

A. even if

B. if

C. as though

D. as

答案：

A. even if

B. if

(答案→)C. as though

D. as

解析：考查连接词辨析。句意“他们谈论的如此热烈，看起来他们好像是老朋友一样。”A“即使”；B“如果”；C“似乎，好像”；D“因为，随着”。故选C。