--Where is your sister? (   )
--She’s _______ home.

A．in

B．to

C．go

D．at

找出下面各句中的错误，并改正。
1. Tom is going study French. __________
2. The children are playing the football in the park. __________
3. He was born on China.   __________
4. Yang Liwei went in a spaceship but made a video. __________
5. The ducks saw the picnic and eat it. __________

We can buy some ping-pong balls ________the sports shop..

A．at

B．in

C．on

填空题。
【小题1】My grandma ________(watch) TV every day .
【小题2】Ann often __________ (watch) TV at home. She ________ (watch) again last night.
【小题3】He wears shorts __________ Australia.
【小题4】Danny __________ (buy) three balls.
【小题5】—Swimming is __________ (easy) for me. I can’t swim.

My brother likes to swim _____ the sea. (   )

A．at

B．on

C．in