--- How is the project going?
--- Fairly well. We have ___________the best solution.
A. looked up B. worked out C. put away D. got off
--- How is the project going?
--- Fairly well. We have ___________the best solution.
A. looked up B. worked out C. put away D. got off
B
解析：短语的考查。work out有如下意思：
1.（根据推理或计算）得出; 算出 （n. / wh-从句）
2. 想出；制订出；产生 （n. / wh-从句）
3. 锻炼；训练 （非正式用语）
4. 有好结果；进行情况良好
5. （情况等的）发展，进行