Chinese have meals _________tables. (   )

A．around

B．inside

C．in

______ Sundays, my brother ______ to school. (  )

A．On; doesn’t go

B．In; goes

C．At; goes

用适当的介词填空。(6分)
（1）We should be good________ animals.
（2）There are all kinds________ flowers on our planet.
（3）Mary's birthday is ________May.
（4）Pandas live  ________   the southwest  ________   China.
（5）Tom often goes to the library  ________   his friends.
（6）African elephants come________Africa.

你看到小明的书包鼓鼓的，很好奇，想知道它里面有什么东西，你这样问小明：    (    )

A．What’s in your bag?

B．What’s on your bag?

There are ?a ruler ____ the desk. (????)

A．at

B．in

C．on