What does the sign（標(biāo)志）say?

1．What time does the University park open in March?

A．At 6：00 am．    B．At 6：30 am．        C．At 8：00 am．        D．At 8：30 am．

2．Which sign tells you not to smoke?

A．Sign 2．              B．Sign 4．                 C．Sign 6．                 D．Sign 8．

3．Where can you see Sign 9?

A．On the playground．                                   B．At the school library．

C．Near the swimming pool．                          D．In the computer room．