问题
选择题
Tom _____ to his friend’s birthday party, but he was too busy yesterday. [ ]
A. must have gone
B. may have gone
C. can have gone
D. could have gone
答案
答案：D
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Tom _____ to his friend’s birthday party, but he was too busy yesterday. [ ]
A. must have gone
B. may have gone
C. can have gone
D. could have gone
答案：D