他在网球比赛中用一记强劲的正手击球得分。

He scored with a strong ___forehand shot during the tennis match.

这匹马的肩部肌肉发达，显示出良好的运动能力。

The horse has strong muscles in its ___forequarters, showing great athletic ability.

她提前支付了房租以确保能租到这套公寓。

She made an ___advance payment for the rent to secure the apartment.