问题
选择题
Tina _____ have known the truth, or she would have told us.
A．mustn't
B．shouldn't
C．can't
D．needn't
答案
答案：C
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Tina _____ have known the truth, or she would have told us.
A．mustn't
B．shouldn't
C．can't
D．needn't
答案：C