--- When did you go out for the newspaper?
--- 10 minutes ago. You the flowers in the garden.
A. have watered
B. were watering
C. watered
D. had watered
网友回答
A. have watered
(答案→)B. were watering
C. watered
D. had watered
解析：考查时态：句意是：你什么时候出去拿报纸？--十分钟前，你正在花园里浇花呢.说明是在我出去拿报纸的时候你正在浇花。用过去进行时，选B。