问题描述: Here _(be) a set of keys.如题.Here _(be) a set of keys.、 1个回答 分类:英语 2014-10-07 问题解答: 我来补答 here is a set of keys.a set of.一串.主语是a set of keys 一串钥匙是单数,相当于a set of keys is here. 展开全文阅读