The two sides a series of promise suggestions and then signed the contract.
A. made out
B. worked out
C. put out
D. picked out
网友回答
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。