问题
选择题
— She looks very happy. She ____ have passed the exam.
— I guess so. It's not difficult after all. [ ]
A. should
B. could
C. must
D. might
答案
答案：C
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— She looks very happy. She ____ have passed the exam.
— I guess so. It's not difficult after all. [ ]
A. should
B. could
C. must
D. might
答案：C