1.He is sitting ( ) the car.选项A：at front B：at front of C：in

1.He is sitting ( in the front of ) the car.(你的题目漏了一个of)
选项A：at front B：at front of C：in the front D：in the front
in front of在…前面,如：
There is a tree in front of the house.房子前面有一棵树.
He sits in front of me.他坐在我前面.
in the front of 在…前部(在某范围以内)
如：There is a big desk in the front of the classroom.It's for the teacher.
教室的前部有一张大桌子,是老师用的.
(在教室范围里面)
at the front of 在…前部与in the front of同意
at…强调“前部的某一点” in强调在…范围的前部
如：There is a man boating at the front of the boat.船的前部有一个人在划船.
2 Please （ B：do ）call me when you get home.表示强调
A：dose B：do C：doing D:to do

1因为是车内部 所以in the front of (你的C D是一样的吧)
他坐在车前面
2选D 你一回家就打电话给我

1. in the front of 是在物体或地点的内部的前部 in front of 你可以理解为在外部的前面
其他都错的短语
2.b do 表强调并且祈使句动词用原型

1 选in the front of
2 B
1在。。。内部前面
2 please do助动词起强调作用