You will hear some dialogues or monologues. Before listening to
each one, you will have time to read the questions related to it. While
listening, answer each question by choosing A, B, C or D. After listening, you
will have time to read your answer. You will hear each piece ONLY ONCE.
Questions 11 ～ 14 are based on the following
passage.
What is the substance in cigarettes that causes cancer