单选题 Visitors to India are often surprised to find that Taj Mahal is an almost ______ topic of conversation.
【正确答案】 B
【答案解析】解析:本题考查同根词的派生含义辨析。unexhaused“取之不尽”,inexhaustible“无穷无尽的”,鲜有inexhaustive和inexhausting的用法。题干旨在描述泰姬陵在印度永远都是个话题,所以选择B最恰当。