企源知识库

__________you can reduce your quotations, we shall have to buy elsewhere.
A、When
B、After
C、Seeing that
D、Unless
【正确答案】：D
【题目解析】：unless 除非；如果不，根据句子的意思“除非你方降低报价，不然我方将从他处购买”选择D选项。