They overcame all the difficulties and fulfilled the plan ten days ahead of sche

游客2024-01-16  6

问题 They overcame all the difficulties and fulfilled the plan ten days ahead of schedule, ______was something we had not expected.

选项 A、that
B、this
C、it
D、which

答案 D

解析 本题考查对句子的理解和从句的使用。因为两句之间没有连词,前面又用的是逗号,所以B和C两个指示代词填进去之后句法就不对,需要用关系代词来连接两个句子。关系代词指代的是前面整个句子,只能用which来引导,答案为D。
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