Mary’s score on the test is the highest in her class; she______have studied very

游客2024-10-02 56

问题 Mary’s score on the test is the highest in her class; she______have studied very hard.

选项 A、may
B、should
C、must
D、ought to

答案 C

解析情态动词。must have done表示对过去的肯定推测，根据句义可知前后半句为肯定的因果逻辑关系，而且后面的行为发生在前面的行为之前，故选择C。

转载请注明原文地址:https://www.tihaiku.com/zcyy/3783360.html

相关试题推荐

随机试题

最新回复(0)

NativeAmericanartworkandartifactshavebeen______collectedandstudiedabr