the sight of

孩子一看到发条玩具就笑了起来。

The child laughed at ___the ___sight ___of the clockwork toy.

孩子看到发条玩具时笑了。

The child laughed at ___the ___sight ___of the clockwork toy.

她厌恶看到她的前夫。

She hated ___the ___sight ___of her former husband.