coin

我在人行道上发现了一枚10便士硬币。

I found a 10p ___coin on the pavement.

今天在人行道上发现了一枚闪闪发亮的硬币。

I found a shiny ___coin on the sidewalk today.

美元硬币在美国一直不太流行。

The dollar ___coin has never been very popular in the United States.