. Living in the western part of the country has its problems, ________ obtaining fresh water is not the least.
| A．with which | B．for which | C．of which | D．which |
Sending Sandra a letter was ________，because her husband might intercept (截取) it.
| A．out of question | B．out of the question |
| C．in question | D．of question |
I want ________ my hair cut，because it wants ________.
| A．having; cutting | B．to have; cutting |
| C．to have; to cut | D．having; to cut |
Since then, finding ways to grow more peanuts ______ his life goal.
| A．has been | B．were | C．was | D．have been |
Why not stay at home ______ the road is so slippery after the heavy snow?
| A．in case | B．as long as |
| C．now that | D．even if |
Maybe if I _______ literature, but not science then, I would be able to give you more advice now.
| A．studied | B．would study |
| C．had studied | D．was studying |