he made up his mind, nothing could change it.A. BeforeB. UnlessC. WhenD. Once

发布时间：2020-08-17 04:46:14

     he made up his mind, nothing could change it.
A. Before
B. Unless
C. When
D. Once

网友回答

A. Before
B. Unless
C. When
(答案→)D. Once
解析：考查连词的用法：A.Before在…前面，B除非，C当…时候，D.once“一旦”，句意是：一旦他下定决心，没有什么可以改变。选D。
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