Mary, stop to have a rest. You the flowers in your garden for nearly two hours.
A. are watering
B. were watering
C. water
D. have been watering
网友回答
A. are watering
B. were watering
C. water
(答案→)D. have been watering
解析：考查时态：句意：玛丽，停下来休息一下，你在花园浇花有两个小时了，说明浇花这个动作是从过去一直持续到现在，用现在完成进行时，选D。