单选题 The mayor was asked to______his speech in order to allow his audience to raise questions.
【正确答案】 C
【答案解析】解析：C选项condense意为“精简，浓缩”。根据句意“市长被要求缩短讲话，以便让他的听众提问”，故选C。其他三项中，A选项constrain“限制”；B选项conduct“控制，实施”；D选项con—verge“聚集”，都不符合句意。