Not until the car looked almost new cleaning it.1网A. John stoppedB. did John stop C. stopp

问题补充：

Not until the car looked almost new cleaning it.1网

A. John stopped

B. did John stop

C. stopped John

D. John did stop

答案：

A. John stopped

(答案→)B. did John stop

C. stopped John

D. John did stop

解析：考查倒装句。Not until 放在句首时用部分倒装，从句不倒装，主句倒装，根据语境应用过去式，句意：直到这辆车看起来几乎是新的，约翰才停止了擦车。故选B。