我们正开车前往山区度假。
We're ___heading to the mountains for vacation.
他被选为新项目的负责人。
He was chosen to ___head the new project.
她的名字排在获奖名单的最前面。
Her name ___heads the award list.
我们正朝北行进,前往山区。
We are ___heading north towards the mountains.