问题补充:
He said that his friend there three days before, but she was not there.
A. had been; now
B. has been; then
C. had been; then
D. was; now
答案:
A. had been; now
B. has been; then
(答案→)C. had been; then
D. was; now
解析:考查时态和副词。句意:他说他的朋友三天前在那里的,但是她那时不在那。第一句子有three days before说明使用过去完成时,第二句中的时态是一般过去时was,故时间状语使用then,而不是now,因为Now用于一般现在时。故C正确。