-- I called you this morning, but nobody answered.
-- Sorry. I the flowers in the garden.
A. am watering
B. was watering
C. water
D. watered
网友回答
A. am watering
(答案→)B. was watering
C. water
D. watered
解析：句意：今天早上我给你打电话，但是没人接。对不起，我正在花园里浇花。过去进行时表示过去某个时间点正在做某事，故选B