–I phoned you at 5:00 yesterday afternoon but nobody answered me.-Sorry. I the flowers i

问题补充：

–I phoned you at 5:00 yesterday afternoon, but nobody answered me.

-Sorry. I the flowers in the garden at that time.

A. am watering

B. was watering

C. water

D. will water

答案：

A. am watering

(答案→)B. was watering

C. water

D. will water

解析：句意：--我昨天下午五点时给你打电话，但是没有人接电话。--抱歉。在那时我正在花园浇花。分析能过对话的时间，表达出回答者的动作在当时正在进行，因此用过去进行行时。故选B