The two sides a series of compromise suggestions and then signed the contract.A. made outB

问题补充：

The two sides a series of compromise suggestions and then signed the contract.

A. made out

B. worked out

C. put out

D. picked out

答案：

A. made out

(答案→)B. worked out

C. put out

D. picked out

解析：考查动词短语的区分。句义：双方解决了一系列有争议的建议并且签订了合同。A.made out理解，辨认出B. worked out 解决 C. put out 生产，出版，扑灭 D. picked out挑选，根据句义B正确。