问题
“Why didn’t she come to the meetingyesterday” “I’mnot so sure. She ______ ill.”
A:should be
B:should have been
C:must be
D:might have been
B:should have been
C:must be
D:might have been
正确答案是：
同类题型
In my opinion, you’d better eat and sleep more _____ lose any more weight[ ]
Discovery in a South African cave suggests that modern human behavior ____ much earlierthan ____.
What__________ to you this morning
__boysand girls in that school are almost equal, of which both of the headmasters areproud