企源知识库

—Why was he so hot when he got home?
—He ________.
A、was running
B、is running
C、has been running
D、had been running
【正确答案】：D
【题目解析】：根据前句可判断句子时态为过去式；run 是发生在过去的过去，因此要使用过去完成时；D符合题意。