问题
选择题
----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
答案：B
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。