问题
单项选择题
Alice（） my letter; otherwise she would have replied before now.
A.oughttohavereceived
B.haven’treceived
C.hasbeenreceived
D.couldn’thavereceived
答案
参考答案：D
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Alice（） my letter; otherwise she would have replied before now.
A.oughttohavereceived
B.haven’treceived
C.hasbeenreceived
D.couldn’thavereceived
参考答案：D