问题描述：
they are for[ ] students.
a.my b.our c.us d.their
this is our classroom.it's a nice room .the windows are big and the walls are ehite.there is a blackboard on the front wall.there is a map of china on the back wall .
there is a big desk .it is【 】the teacher. there are fifty small desks and chairs.thet are for ____students
a.my b.our c.us d.their
this is our classroom.it's a nice room .the windows are big and the walls are ehite.there is a blackboard on the front wall.there is a map of china on the back wall .
there is a big desk .it is【 】the teacher. there are fifty small desks and chairs.thet are for ____students
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