一名行人被出租车撞倒了。

A pedestrian was ___knocked ___down by a taxi.

那个孩子被公共汽车撞倒，伤势严重。

The child was ___knocked ___down by a bus and seriously injured.

那个鲁莽的司机在十字路口撞倒了一名骑自行车的人。

The reckless driver ___knocked a cyclist ___down at the intersection.