No one responded when Tom was speaking, so he paused before continuing to draw our atten

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(答案→)A. deliberately
B. eagerly
C. sincerely
D. faithfully
解析：考查副词：A. deliberately故意地，B. eagerly渴望地，C. sincerely真诚地，D. faithfully真诚地，句意：汤姆说话的时候没有人回答，所以他在继续说话之前故意停顿，来吸引大家的注意力。选A。