Passage Two Questions 29 to 31 are based on the passage you have just heard.

A．A notice on the bulletin board.
B．A book for a class the man is taking.
C．A chemistry class that is being taught.
D．The library reserve desk.

A．The speaker’s friend entered his house from back door.
B．The speaker’s friend entered his neighbor’s house by mistake.
C．A thief entered the speaker’s house by mistake.
D．The speaker’s friend entered the room by climbing the apple tree.