Unfortunately, he ______ the truth that he hated formal dinners just as his hostess walked in.
A、blurted out
B、held back
C、approved of
D、shrugged off
【正确答案】:A
【名师解析】:选项A "blurted out" 是正确的答案。这个短语意味着某人突然说出了心里的话,通常在没有深思熟虑的情况下。在句子中,"Unfortunately" 表明接下来的动作是不希望发生的,而 "he hated formal dinners" 是一个他不想让女主人知道的秘密。"just as his hostess walked in" 进一步强调了这个秘密是在不适当的时机被说出的。因此,"blurted out" 完美地符合了这个语境,表示他不小心说出了他对正式晚宴的厌恶。其他选项,如 "held back"(抑制住), "approved of"(赞成), 和 "shrugged off"(不屑一顾)都不符合句子的语境。