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

A．The construction of the American space station.
B．Budget problems.
C．Delays.
D．Technical difficulties.

A．Philip has not been to this part of the library before.
B．It was very quiet in the library.
C．Philip fell off the ladder and made a loud noise.
D．The librarian was very kind to readers.