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
【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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