填适当介词1、Mike is only 14 years old,but he has tralled from Nanjing to beijing _ his own many times.2、This new railway station will be _ service next year.

来源:学生作业帮助网 编辑:作业帮 时间:2024/06/10 07:55:02

填适当介词
1、Mike is only 14 years old,but he has tralled from Nanjing to beijing _ his own many times.
2、This new railway station will be _ service next year.

1.on
2.in

by
on