Question

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

—I phoned you at 5:00 yesterday afternoon, but nobody answered me.—Sorry. I the flowers in the garden at that time. A．was watering B．am watering C．water D．will water

Answer 1

A

根据答句中的at that time 可知描述的是过去某时正在进行的动作，故用过去进行时。故选A。