Mary's score on the test is the highest in her class; she _____ have studied very hard.

来源：百度知道 编辑：UC知道 时间：2024/06/30 03:37:58
答案是MUST 但是may也可以吧,表示可能性不高

Mary's score on the test is the highest in her class; she must have studied very hard.
玛丽的评分测试是班上最高的，她必须学习非常努力。
Mary's score on the test is the highest in her class; she may have studied very hard.
玛丽的评分测试是班上最高的，她可能很难努力。
你自己看吧，还是must比较通顺一点。

有个前提了：score is the highest in her class. highest 也~~
所以 studied very hard.这个推测是比较肯定的！ 用must
像你这样理解就有点带中文性了

还有什么问题吗？

前提是：score is the highest in her class. 所以我们可以推测出Mary学习刻苦 ,所以用must

must