当前位置:在线题库搜索>[单选题]Tina () have known the truth, or she would have told us. 选项的答案是什么?

问题:

[单选题]Tina () have known the truth, or she would have told us. 选项

A、mustn.t
B、 shouldn.t
C、can.t
D、needn.t

参考答案: C