问题补充:
----What the children be doing?
----They be playing a game called Bingo.
A. might; can
B. can; might
C. might; might
D. can; can
答案:
A. might; can
(答案→)B. can; might
C. might; might
D. can; can
解析:考查情态动词。can可能,might也许。句意:——孩子可能正在做什么呢?——他们也许正在玩叫Bingo的游戏。