It’s difficult for college students to h
问题:
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
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