4. When Mary finally got there, Tom had left an hour .A. beforeB. agoC. laterD. After

发布时间：2020-08-16 06:39:52


4. When Mary finally got there, Tom had left an hour     .
A. before
B. ago
C. later
D. After

网友回答

A. before
(答案→)B. ago
C. later
D. After
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