网址:http://m.1010jiajiao.com/timu3_id_3197091[举报]
—Why do you look so worried?
—Fred left the company half an hour ago. His work _______ unfinished since.
A.left B.was left C.has left D.has been left
-Why do you worried?
-Fred left the company half an hour ago.His work ________ unfinished since.
left
leaving
has left
has been left