单选题 When he finally emerged from the cave after thirty days, John was shockingly pale.

【正确答案】 B

【答案解析】[解析] startling“惊人地”；enormously“极大地”；uniquely“独一无二地”；dramatically“戏剧性地”。四项选择都是以-ly结尾的副词，但意思完全不同，只有startling符合。