This is our playground.  We ______ on it. (    )

A．playing football

B．plays football

C．play football

英汉互译。
1. different jobs   __________________ 2. some jugglers  __________________  
3. He isn’t a vet.   __________________ 4. I am a doctor.  __________________
5. call the telephone __________________ 6. 打电话求助  __________________ 
7. 快点！ __________________ 8. 别担心 __________________
9. 我需要帮助。__________________ 10.回家 __________________

_____! The bicycle is broken(坏的).

A．Look of

B．Look out

C．Look in

Look    the monkey. (  )

A．at

B．on

He is good___it. （   ）

A．on

B．at