单选题
Not long ______ she registered a new number, she received five calls in one day.
A. afterwards B. after C. ago D. since
A
B
C
D
【正确答案】
C
【答案解析】
考查时间状语。not long afterwards“此后不久”，not long after“不久以后”，not long ago“不久以前”，not long since“不久以前”。故选C。
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