He likes           out along the river with his wife on weekends. [ ]

A. hang

B. hung

C. hanging

D. hunging

在工程项目实施阶段，承包商与业主方之间冲突的原因，主要有（）。

A.利益取向不同

B.合同关系不对等

C.对问题理解不一致

D.参与主体多