They did not feel (at case) (after) their experiment (was proved) a (success).A、

游客2024-07-02  9

问题 They did not feel (at case) (after) their experiment (was proved) a (success).

选项 A、at case
B、after
C、was proved
D、success

答案 B

解析 此句子中时间状语从句为固定搭配not...until,所以应把after改为until。
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