I won't tell you my secret unless you____ not to tell anyoneA pro_英语解答

I won't tell you my secret unless you____ not to tell anyone
A promising B promisedC are promisingD are going to promise
答案a原因

人气：260 ℃　时间：2019-08-20 05:03:51

解答

A unless 后可以不跟独立句子,可以跟定语从句