根据中文提示,完成英语填空

问题描述:

根据中文提示,完成英语填空
1.司机上车,坐到车前面
The driver gets on the bus and sits___________the bus.
2.司机下车,坐到车前面
The driver gets off the bus and sits___________the bus.
3.左耳在左边,右耳在右边.
The left ear is___________and the right ear is_________.

in the front of
in front of
on left on right