工地工人发现了两具尸体躺在建筑废墟下面。

Construction workers found two ___bodies lying under the building debris.

那位老师上课时总是板着脸，真是个古板的人。

The teacher is such a ___stiff in class, never cracking a smile or joking around.

那个醉汉踉踉跄跄地走在街上，嘴里嘟囔着没人听得懂的话。

The ___stiff stumbled down the street, mumbling words no one could understand.