这个玩具火车模型是我爸爸做的。

This toy train ___model was made by my dad.

学生们建造了一个详细的铁路模型。

The students built a detailed ___model of the railroad.

她喜欢把建造著名建筑的模型当作爱好。

She enjoys building ___models of famous buildings as a hobby.