when I reached home,my parents _ their supper.A.are having B.have_英语解答

when I reached home,my parents _ their supper.A.are having B.have already had
C.have had D.had already had
为什么不选B而选D?

人气：312 ℃　时间：2019-08-20 05:19:29

解答

因为reached 是过去式他们在我到家之前就吃完了所以是过去的过去所以是过去完成时而不是现在完成时