阅读下面的短文，掌握其大意，然后从短文后各题所给的A、B、C、D四个选项中，选择最佳选项。

    I am a middle school student. Now let me tell you something about our classroom. It's very clean and bright. There are 1 maps on the back wall. One is a map of China, the other one is a map of the world.

    There are 40 desks and chairs in our classroom. There is a big desk 2 our teachers in the front of it. You can see three big and bright 3 in the wall. Every day, you can see the sun shines through them into the classroom. We 4 four classes in the morning and two in the afternoon from Monday to Friday.

    I like my classroom very much. It's a good place for studying.