阅读理解。 We are middle school students. We're in Class 3, Grade7. This is our classroom. It is a nice big room. You can see a clock over the blackboard.   You can see desks and chairs in the room.  They're new.   The books are on the desks. The  bags are behind the chairs. Can you see a big desk? It is the teacher's desk. On the teacher's desk you can see some flowers. They are for our teacher, Miss Gao. She is a good teacher. 根据短文内容，判断句子的正(T)，误(F )。 (     )1. A clock is under the blackboard. (     )2. The books are on the desks and the bags are behind the chairs. (     )3. We are students. We're in Class 1, Grade 7. (     )4. The teacher's desk is big. (     )5. Miss Gao is a good teacher.