医生建议尝试不同的治疗方式，看看哪种效果最好。

The doctor suggested trying different ___modalities of treatment to see which works best.

动词的情态可以表达说话者对动作真实性的态度。

The ___modality of a verb expresses the speaker's attitude toward the action's reality.

物理疗法是治疗慢性疼痛的常用治疗方法之一。

Physical therapy is a common ___modality for treating chronic pain.

听觉和触觉是两种不同的感知方式。

Hearing and touch are different ___modalities of perception.