There are fewer teaching positions left in big cities, ______ at the same time there are shortages of teachers in small towns．
| A．or | B．and | C．so | D．for |
You can try to guess the meaning of ______ words you don't know from ______ passage．
| A．the; 不填 | B．the; the | C．不填;不填 | D．不填; the |
The hike costs ￡2,500 ____all fights and accommodation.
| A．including | B．include | C．included | D．to include |
_____ the group guide, all teams have cookers and porters.
| A．In addition | B．Due to | C．As well as | D．As well |
Marco, ____, was amazed by how beautiful and powerful China was.
| A．by turn | B．in turn | C．with turn | D．in return |
We’ll teach you survival skills and you’ll learn how to ____ a fire and build your own shelter.
| A．light | B．burn | C．set | D．make |