半轮明月挂在夜空中。

A ___half moon hangs in the night sky.

她给了妹妹一半的巧克力。

She gave her sister ___half of the chocolate.

他只完成了项目的一半。

He only finished ___half of the project.

他们在下半场打进了决定性的一球。

They scored the winning goal in the second ___half.