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  3. 15. My key was missing, I ______ it in the office.A、should have leftB、could hav

15. My key was missing, I ______ it in the office.A、should have leftB、could hav

游客2024-07-28  21
问题 15. My key was missing, I ______ it in the office.
选项 A、should have left
B、could have left
C、must have left
D、need have left
答案 C
解析 句子意为：我的钥匙不见了，我肯定是把它放在办公室了。must have done表示对过去发生的事情的推测。
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