问题
选择题
----- __________it be Li Ping who broke the glass?
---- No. It __________ be Wu Dong who did it.
A.Could; may
B.Can; must
C.May; must
D.Can; can
答案
答案:B
考查情态动词。Can可能;must一定。句意:——打破杯子的可能是李平么?——不,一定是吴东做的。