Once Johnny starts painting a picture, h

考试题库2022-08-02  18

问题 Once Johnny starts painting a picture, he won′t stop until it_________A.had been finishedB.was finishedC.is finishedD.will be finished

选项 A.had been finished
B.was finished
C.is finished
D.will be finished

答案 C

解析 本题考查时态与语态。句意:一旦约翰尼开始画一幅画,他不画完是不会停下来的。not…until…引导时间状语从句时,从句不能用将来时,主句为一般将来时,从句用一般现在时。it指代picture,与finish是被动关系,故应使用被动语态。故本题选C。
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