Not a single song （）at yesterday's party.
A、
she sang
B、
sang she
C、
did she sing
D、
she did sing
【正确答案】：C
【题目解析】：
否定词（not）置于句首要倒装，此句的结构为：not＋a single song＋助动词 did＋主语＋谓语的一部分＋其他成分。
Not a single song （）at yesterday's party.
Not a single song （）at yesterday's party.
she sang
sang she
did she sing
she did sing
否定词（not）置于句首要倒装，此句的结构为：not＋a single song＋助动词 did＋主语＋谓语的一部分＋其他成分。