fast

他听到铃声后跑得更快了。

He started running ___faster after hearing the bell.

他在比赛中跑得最快，赢得了金牌。

He ran the ___fastest in the race and won the gold medal.

我的新自行车骑起来很快。

My new bike is very ___fast.

这列火车速度很快。

This train is ___fast.

你能说慢一点吗？你说得太快了。

Can you speak slowly? You speak too ___fast.