He won the scholarship. He ______ hard these terms.A、should have workedB、must h

游客2025-03-17 36

问题 He won the scholarship. He ______ hard these terms.

选项 A、should have worked
B、must have worked
C、must have been working
D、could have worked

答案 C

解析本题考查的是情态动词表示推测的情况。Must表示肯定推测，+现在时表示对现在的肯定推测；+完成时则表示对过去情况的肯定推测。同样，+现在完成进行时，则表示对一直以来情况的推测。根据题意，是说他一定这些学期以来一直都很努力学习，所以选C。

转载请注明原文地址:https://tihaiku.com/zcyy/4000923.html

相关试题推荐

随机试题

最新回复(0)

Lincolnproclaimedthattheproblemofsettingfreetheblackslavesshould____