こちらで買ったペットボトルを捨ててもいいですか？ — Is it okay if I dispose of this plastic bottle I bought here? (Convenience · Store, Formal — to staff, JLPT N5)

Gesture & etiquette

Hold up the empty plastic bottle or can. Point to the bin if there is one visible.

Only dispose of items purchased at that specific store. Do not bring outside trash. Separate trash correctly if multiple bins are provided (e.g., cans, plastic bottles).