I remember that ＿＿＿＿ an old church on the top of the hill many years ago.

A．used to be there

B．there used to be

C．there used to have

D．there had

天主教认为世人生前犯有未经宽恕的轻罪或已蒙宽恕的重罪及各种恶习，其亡灵在升入天堂之前，须经过净化，这种净化的场所称为( )。

A．地狱
B．火狱
C．炼狱
D．监狱