At first they worried about the situation but things quite well.
A. went on
B. carried on
C. worked out
D. tried on
网友回答
A. went on
B. carried on
(答案→)C. worked out
D. tried on
解析：短语辨析。A继续；B进行；C想出; 制订出; 产生出，产生结果; 发展; 成功；D试穿；结合句意可知C正确。句意：一开始他们很担心这种情况。但是事情的结果非常好。