The visiting minister expressed his satisfaction with the talks, 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：这题考查现在分词做伴随状语，adding that“补充说”，句意是：来访的部长表达他对合谈的满意，补充说他很享受呆在这里的时候。选C。