问题
选择题
11. Madonna ______ a straight–A student, but it was dancing that she was really crazy about.
A．must be
B．could be
C．must have been
D．could have been
答案
答案：D
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11. Madonna ______ a straight–A student, but it was dancing that she was really crazy about.
A．must be
B．could be
C．must have been
D．could have been
答案：D