be worn out是固定词组吗?Your shoes are ______,pleasebuy a new pair.1、worn out 2、wear out 3、worbe worn out是固定词组吗?Your shoes are ______,pleasebuy a new pair.1、worn out 2、wear out 3、wore out为什么是1?2和3怎么不行?
问题描述：
be worn out是固定词组吗?Your shoes are ______,pleasebuy a new pair.1、worn out 2、wear out 3、wor
be worn out是固定词组吗?Your shoes are ______,pleasebuy a new pair.1、worn out 2、wear out 3、wore out为什么是1?2和3怎么不行?
答
3 wore 是过去式，worn是过去分词，be worn out 穿到破了的意思，算固定搭配吧
out 和其他词结合也能表示到底了，完了，用尽了的意思
答
be worn out 穿破了