2. 职称考试
  3. Not until some students failed the exam __________how much time they had wasted.

Not until some students failed the exam __________how much time they had wasted.

admin2020-12-24  21
问题 Not until some students failed the exam __________how much time they had wasted.
选项 A.they realized

B.did they realize

C.didn' t they realize

D.they didn' t realize
答案B
解析考查倒装。在以never，little，hardly，scarcely，not only，notuntil，no sooner…than，bynomeans等开头的句子中，主谓要倒装，排除A、D两项。这些词或词组本身已经表示否定或半否定意义．所以谓语动词借助肯定助动词即可。故选B。
转载请注明原文地址:https://ti.zuoweng.com/ti/6mT8KKKQ
相关试题推荐
随机试题