One of the extraordinary qualities of glass is that it can carry ______.

A．Never drive faster than 30 mph.
B．Try your best to save yourself in a car accident.
C．Never forget to wear the safety belt while driving.
D．Drive slowly while you're not wearing a safety belt.

A．wrote a letter to his mother himself
B．was in hospital for a long time
C．couldn't say any words when he saw the president
D．was badly hurt in the Civil War