At first they worried about the situation but things quite well.A. went onB. carried onC.

问题补充：

At first, they worried about the situation but things quite well.

A. went on

B. carried on

C. worked out

D. tried on

答案：

A. went on

B. carried on

(答案→)C. worked out

D. tried on

解析：考查短语。A 继续 B继续 C 结果是；计算；锻炼D 试穿。句意：一开始，他们还为现状担心，但是结果证明相当不错。故选C。