2. 外语
  3. He won the scholarship. He______hard these terms.

He won the scholarship. He______hard these terms.

admin2012-08-03  32
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，接现在时表示对现在的肯定推测；接完成时则表示对过去情况的肯定推测。同样，接现在完成进行时，则表示对一直以来情况的推测。根据题意，是说他这些学期以来一定一直都很努力学习，所以选C。
转载请注明原文地址:https://kaotiyun.com/show/osDO777K
0

成人本科学位英语

相关试题推荐
随机试题
最新回复(0)