—Someone has tidied the sitting room!
—Jim it this morning; he couldn't bear the mess any more．
A. has done
B. would do
C. had done
D. did
网友回答
A. has done
B. would do
C. had done
(答案→)D. did
解析：考查时态：句意：有人打扫了起居室！--吉姆早上做的，他不能再容忍这种不整洁了。因为时间是this morning属于过去时间，而且后面用could可知是过去时。选D。