The visiting minister expressed his satisfaction with the talk, that he had enjoyed his stay here.
A. having added
B. to add
C. adding
D. added
网友回答
A. having added
B. to add
(答案→)C. adding
D. added
解析：考查现在分词做伴随状语，add是补充说，The visiting minister和add是主动关系，用现在分词做状语，句意：来访的部长表达了他对合谈的满意，补充说他喜欢在这儿的时间。选C。