Questions 30 to 32 are based on the passage you have just heard.

A．Because a bell tower was to be built on the site.
B．Because it was found unsafe.
C．Because a parking lot was to be constructed there.
D．Because no one wanted to preserve it.

A．They have very few hairs on their bodies.
B．They bear their young rather than laying eggs.
C．Their lungs are full of hot air and water.
D．They can walk on their hind legs on land.