Ⅰ.单项填空
1．—It is________must for us to buy a flat.
—Yes.But with house prices soaring，it is out of________question.
A．a；/ B．the；/
C．the；a D．a；the
2．(2012•潍坊训练)I put my eye to the microscope and see nothing at all，________something unclear and milky.
A．including B．besides
C．except D．beyond
