A set of keys

A set of keys a set of keys please. 求解(a set of keys) 是a set of keys还是a set of key? a set of keys英汉互译 a set of keys的英文是什么 Here _(be) a set of keys. a set of keys is on 是there is a set of keys还是there are a set of keys? I have a set of keys 根据a set of keys 提问? There is ( ) A.key B.a set of key C a set of keys D.keys 选哪个 ①a set of keys的中文意思是?