这条路是镇上最直的，几乎没有转弯。

This road is the ___straightest in town with almost no turns.

在所有候选人中，她给出了最直截了当的回答。

Among all the candidates, she gave the ___straightest answer.

请确保所有文件按正确顺序排列后再提交。

Please make sure all documents are in the ___correct order before submitting them.

我喜欢喝纯咖啡，不加糖或奶。

I like my coffee ___straight, without sugar or milk.

在那些聚会上，她总是表现得最传统，只谈论异性相关的话题。

At those parties, she always acted like the ___straightest one, only talking about topics related to the opposite sex.