单选题 His strange behavior had greatly ______ me and my friends as well that evening.
【正确答案】 A
【答案解析】(perplex使困惑)。句意为：那天晚上，他奇怪的举止使我和朋友们大惑不解。B．exhaust使筋疲力尽；C．exclaim惊叫；D．exceed超过。