问题补充:
Miss Wang in three days because she is going to see her grandparents.
A. is back
B. will be back
C. comes back
D. are going to be back
答案:
A. is back
(答案→)B. will be back
C. comes back
D. are going to be back
解析:句意:因为王小姐在去看望她的祖父母她将在三天后回来。根据时间状语in three days可知这里应该用一般将来时,故排除AC;因为主语Miss Wang是第三人称单数,所以排除D。故选B。