他轻轻地把花放在桌子上。

He ___laid the flowers gently on the table.

母鸡通常在清晨下蛋。

Hens usually ___lay eggs in the early morning.

工人们正在为新铁路打地基。

The workers are ___laying the foundation for the new railway.

作为一个外行，我对这些医学术语感到困惑。

As a ___lay person, I find these medical terms confusing.