Question

【题目】 Not until the motorbike looked almost new ________ repairing and cleaning it.

A. he stopped B. did he stop

C. stopped he D. he did stop

Answer 1

【答案】B

【解析】句意：直到看起来跟新的一样，他才停止修理、擦洗这辆摩托车。not until引导时间状语从句位于句首时，主句谓语动词需用部分倒装，即需要将本句中的助动词提到主语之前。故选B。