问题
选择题
— Tom graduated from college at a very young age.
— Oh, he _____ have been a very smart boy then. [ ]
A. could
B. should
C. might
D. must
答案
答案:D
— Tom graduated from college at a very young age.
— Oh, he _____ have been a very smart boy then. [ ]
A. could
B. should
C. might
D. must
答案:D