Living alone in the central desert in Australia has its problems, _________obtaining water is not the least.
| A．of which | B．for what | C．as | D．whose |
I bought a dress for only 10 dollars in a sale; it was a real ____.
| A．exchange | B．bargain | C．trade | D．business |
_____in the office all day long, Wendy is more than tired when she arrives home.
| A．Engage | B．Engaged | C．To engage | D．Engaging |
The managers discussed the plan that they would like to see _______the next year.
| A．carry out | B．carrying out | C．carried out | D．to carry out |
_______you can easily have lunch in the restaurant around the corner, why do you take the trouble to drive many miles here?
| A．When | B．Unless | C．While | D．Where |
Watching the 2010 World cup is my dream, ______ that I’m expecting for years.
| A．one | B．it | C．/ | D．those |