The teacher's deask is in front of thr classroom.哪里错了

in front of ---in the front of

deask->desk / thr ->the

恩 在内部

The teacher's desk is in "the" front of the classroom
in front of 在某物之外的前面
in the front of 在某物之内的前面
教师桌在教室内，所以改为in the front of

in front of 在室外的前面
in the front of 在室内的前面
in front of ---in the front of