問題詳情：
Ladies and gentlemen, due to an unexpected accident, one of the singers who all of you ______ to hear ______ tonight.
A. had come; don’t perform B. come; won’t perform
C. have come; won’t be performing D. came; wouldn’t perform
【回答】
C
知識點：現在完成時及其被動式
題型：選擇題
