It’s difficult for college students to have a train seat during holidays, so th

题型：不详难度：来源：

It’s difficult for college students to have a train seat during holidays, so they are advised to make seat ________ well in advance.                     

A．observations

B．reservations

C．preservations

D．conservations

答案

B

解析

词义辨析。Observations观察，观察结果； reservations 预约，保留； preservations  保存，保留； conservations保存，保护。句意：在假期当中对于大学生来说很难有一个火车座位，因此建议他们提前预定好座位。故选B。