there is a teacher's(teacher) desk in front of the reading (read) room.

there is a teacher's(teacher) desk in front of the reading (read) room.
there is a teacher's(teacher) desk in front of the reading (read) room.

there is a teacher's(teacher) desk in front of the reading (read) room.
句中in front of 应改为in the front of.前者表示外部的前面,后者表示内部的前面.因为讲桌是在阅览室里的前面.所以应该用后者.