A．rats weakened its foundation
B．farmers cut it to build houses
C．visitors carved pictures into it
D．visitors chipped pieces off it
A．push people to learn history
B．ensure government function
C．enforce ancient site protection
D．push visitors to behave properly
A．severe
B．biased
C．implicit
D．complex
A．a famous British Parliament member
B．the value of ancient heritages in the UK
C．the history and protection of Stonehenge
D．the origin of the Ancient Monuments Bill