问题补充:
---Where is Miss Wang?
---She went to Hainan Island last week and will return six days.
A. ago
B. later
C. behind
D. in
答案:
A. ago
B. later
C. behind
(答案→)D. in
解析:ago 以前的;later 更吃的,后来;behind在后面;in 在里面,在……之内;句意:王老师去哪儿了?——她上周去了海南岛,六天后回来。在将来时态中,in加一段时间表示在这段时间之后。故选D。