问题补充:
—You were out when I dropped by your house.
— Oh, I in Zhongbai Supermarket with my parents.
A. was shopping
B. had shopped
C. am shopping
D. have shopped
答案:
(答案→)A. was shopping
B. had shopped
C. am shopping
D. have shopped
解析:句意:---当我拜访你家时你不在家。---哦,我和我的父母正在中百超市购物。句中dropped用的是一般过去时,因此“拜访”的时候,正在超市购物,用过去进行时。故选A。