问题
选择题
His friends go to Beidaihe by train _______vacation every year.
A．at
B．of
C．on
D．in
答案
答案：C
go to sp on vacation 表示去某地度假的意思，故选答案为C
搜题请搜索小程序“爱下问搜题”
His friends go to Beidaihe by train _______vacation every year.
A．at
B．of
C．on
D．in
答案：C
go to sp on vacation 表示去某地度假的意思，故选答案为C