他看到球飞来，立刻低头躲避。

He quickly ___ducked when he saw the ball coming at him.

看到飞来的球，她迅速低头躲开了。

She quickly ___ducked when the ball came flying at her.

看到飞来的球，他迅速低头躲开了。

He quickly ___ducked to avoid the flying ball.

每当要交作业时，他总是躲躲闪闪。

He always ___ducked when it was time to hand in homework.