fall的过去式和过去分词形式

例句：

She fell while toddling around.

她在蹒跚学步时摔倒了。

He fell down a crevasse.

他从裂缝处摔了下来。

The rain fell steadily.

雨不紧不慢地下着。

The handle had fallen off the drawer.

抽屉的'拉手掉了。

A loose slate had fallen from the roof.

一块松动的石板瓦从房顶上掉了下来。

Prices have fallen by a quarter since January.

自1月份以来，物价下降了1/4。