马拉松比赛通常在清晨开始，以避开炎热天气。

Marathon ___races usually start early in the morning to avoid heat.

过山车在轨道上飞驰。

The roller coaster ___races along the track.

不同种族的人应该互相尊重和理解。

People of different ___races should respect and understand each other.

当比赛开始时，所有的马都飞快地冲了出去。

When the race started, all the horses ___raced forward at full speed.

渔船在开阔海域的巨浪中艰难前行。

The fishing boat struggled through the strong ___waves in the open sea.