Big Ben is in ______.

A．Men will be afraid of women’s increasing courage.
B．It’s impossible for women to govern the whole family.
C．Education of women both reflects and fosters women’s concept of frivolity.
D．Female excellence is a justified concept in today’s society.

A．They have found many fingerprints on tools made of it.
B．They have found holes that were dug with it.
C．They have discovered many tools made of it.
D．They have discovered it beside relics of Neolithic men.