企源知识库

We don't think we can put the business through______you revise your terms and conditions.
A、unless
B、expect
C、only if
D、in addition
【正确答案】：A
【题目解析】：句意：我方认为我们不能达成交易，除非贵方修改条款。unless引导状语从句，表示“除非……”。