选词填空。
【小题1】_________ ( Do / Does ) you have a playground?
【小题2】We have ________ ( a / an)art room.
【小题3】It’s ________ ( to / on )the second floor.
【小题4】The teachers’ office is next ________ ( to / on ) our classroom.
【小题5】Look! This ________ ( is / are ) our new classroom.

What do you do ________ Christmas? (  )

A．in

B．at

C．on

在天空中(    )

A．in the moon

B．in the sky

We can watch it ________ (在我家).  (  )

A．at my home

B．at school

Lhasa is in the west_______ China. (   )

A．in

B．of

C．at