cooperate ·verb (HELP)

当我两岁的女儿拒绝配合时，我发现很难给她穿衣服。

I find it very hard to dress my two-year-old when she refuses to ___cooperate.

他试图站起来，但他的头不听使唤，于是他决定暂时坐在原地。

He tried to get on to his feet but his head refused to ___cooperate so he decided to sit where he was for the time being.

项目的成功取决于所有部门是否愿意相互配合。

The success of the project depends on all departments being willing to ___cooperate with each other.