he told us he ____ his clothes at eight last night.

问题描述:

he told us he ____ his clothes at eight last night.
A.washed B.had been washing C.would wash D.was washing

选D,他告诉我们,昨晚八点时,他正在洗衣服.为什么选D时间状语是过去的某一个点时间,在过去的某一时刻,所以用过去进行时。