Do you know where your father is?I think he______on the computerA_英语解答

Do you know where your father is?I think he______on the computer
A.must chatB.must be chattedC.could chatD.could be chatting

人气：227 ℃　时间：2019-11-15 19:26:57

解答

答案选：D.麻烦告诉下理由mush be是肯定猜测，could be是否定猜测。而且是对现在的事实进行推测，所以选d