他的梦想终于实现了，一家咖啡店在街角出现了。

His dream finally came true when a coffee shop ___materialized on the street corner.

经过多年的研究，他的想法终于变成了现实。

After years of research, his idea finally ___materialized into reality.

我们正在讨论失踪的猫时，它突然在花园里出现了。

While we were discussing the missing cat, it suddenly ___materialized in the garden.