我找不到另一只袜子了,它们总是一起消失。
I can't find the other ___sock, it always disappears together.
我有一只蓝色的袜子和一只红色的袜子。
I have one blue ___sock and one red ___sock.
我需要洗这只脏袜子。
I need to wash this dirty ___sock.