他用手揉了揉酸痛的肩膀。

He ___rubbed his sore shoulder with his hand.

新鞋磨得我脚后跟疼。

My new shoes are ___rubbing my heels painfully.

她往手上擦了护手霜。

She ___rubbed hand cream onto her hands.

他用橡皮擦把错误的答案擦掉了。

He ___rubbed out the wrong answer with an eraser.