Do you have a computer in your classroom? (根据提示回答：有)
The teachers’ office is on the second floor. (根据答句写问句)
| A．in | B．on | C．near |
| A．Yes, I am. | B．No, they aren’t. | C．Yes, we do. |
| A．Where’s the library? | B．Do you have a library? | C．Is this the library? |
| A．a; in | B．a; on | C．an; on |
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