问题

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
B:could be
C:must have been
D:could have been
正确答案是:
同类题型
The new tax policy only affects people on yearly incomes over $120,000, __________, the very rich.
David ________ chicken, but he ______ fruit.
o you think I should receive the reporter—___ you feel about him, try to be polite
help you You seem to be having some problems. — , thanks. I think I can manage.