单选题
After _____ seemed to be an endless wait, it was finally his turn to have the interview.
A、
that
B、
when
C、
what
D、
which
【正确答案】
C
【答案解析】
[解析] 考查what引导的名词性主语从句。该从句中缺少主语，因此选what，C正确。
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