单项选择题

A．on
B．up
C．off
D．down
<上一题 目录 下一题>
热门 试题

填空题
double
单项选择题
A．Book a hotel room.B．Book an air ticket.C．Order a table.D．Make an appointment with the travel agent.
A．Book a hotel room.
B．Book an air ticket.
C．Order a table.
D．Make an appointment with the travel agent.
相关试题