单选题 Mary thought she would never meet Tom again, but by a curious ______ they finally met.
A. coincidence B. incidence C. incident D. accident

【正确答案】 A

【答案解析】[解析] (coincidence巧合)。句意为：玛丽以为她再也见不到汤姆了，但真巧，他们最终又见面了。B．incidence发生率；C．incident小事件，事变；D．accident偶然。