Not once did the supervisor______during the staff dispute, hoping the employees involved would find a solution for themselves.

admin2018-11-19 46

问题 Not once did the supervisor______during the staff dispute, hoping the employees involved would find a solution for themselves.

选项 A、intervene
B、to intervene
C、intervening
D、intervened

答案A

解析这句话中的否定词Not被提到了句子最前面，主语与谓语采用了倒装。助动词do的过去式形式did出现在句子开头时，主语后面的动词应使用动词原形，故选(A)intervene。

转载请注明原文地址:https://kaotiyun.com/show/aK4d777K

托业阅读

相关试题推荐

随机试题

最新回复(0)