单选题 The blind man was so _________that he didn't know what to do.
【正确答案】 B
【答案解析】grateful:感激的,表示感谢的;frightened:惊吓的,害怕的;determined:坚定的,果断的;forgettable:(因平淡无奇)易被忘记的,容易遗忘的。根据句意可知,选B。