单选题 Sometimes it is advisable to book hotels in advance.
【正确答案】 D
【答案解析】advisable是“可取的、合适的”的意思,所以和wise“明智的”同义。句子的意思是:有时事先预订好旅馆是可取的。又如:The weather is so changeable that it is advisable to take an umbrella with you whenever you go out.(天气多变,出门带上雨伞不亏为明智之举)。profitable是“有益的、有利润的”。