成本是选择这个建筑商的决定性因素。

Cost was the ___deciding ___factor in choosing this builder.

个人认为，教师质量、学校声誉和设施应该是父母选择孩子受教育学校的决定性因素。

Personally, I think the quality of teachers, school reputation, and facilities should be the ___deciding ___factor for parents in choosing which schools their children should be educated in.

候选人的经验是招聘过程中的决定性因素。

The candidate's experience was the ___deciding ___factor in the hiring process.