What 
to your head ?
| A．is | B．happened | C．happen | D．happening |
Canada is ____ the north of America.
A．too B．two C．to
New York isn't____the west.
A．on B．in C. at
What a ____ map of China!
A．smallB．bigC．little
根据所给句子选出相应的职业。(15分)
( )（1）I work in a hospital. I help people. I am a ________．
( )（2）I work on the farm. I get many good things in autumn. I am a ________．
( )（3）I drive a bus every day. I can travel. I am a ________．
( )（4）I work at school. I love my students. I am a ________．
( )（5）I am very busy. I catch the thieves(小偷)．I am a________．
It's a picture ________ the Great Wall.
A．for B．off C．of