His acceptance speech was ________, eliciting thunderous applause at several points.
句意：他的获奖感言十分受欢迎，有好几处引起了雷鸣般的掌声。由后文的“applause”可知，应该选一个褒义词。well-received受欢迎的。tedious沉闷的；冗长乏味的。cowardly怯懦的