用in表示穿了一双鞋, 那么in 和穿没关系,和地点状语有关系,表在什么场合穿:
wear a pair of shoes in somewhere
She wears a pair of black leather shoes in office.
她在办公室穿了一双黑皮鞋。
She wears a pair of sports shoes in PE class.
她在体育课上穿一双运动鞋。
介词in可以表示穿着,比如
the girl in black shoes 穿黑色鞋子的女孩。
He is in a yellow shirt. 他穿一件黄色衬衫。
be in one shoe; wear one shoe; have on one shoe; have one shoe on 穿了一双鞋
This child is in one shoe / wearing one shoe / having on one shoe / having one shoe on 这个孩子穿了一只鞋。