听一段材料，回答下面几个小题。How long did Mary stay in bed?
A. For 2 days.
B. For 3 days.
C. For 4 days.Why have so many people caught a cold?
A. Because of the cold weather.
B. Because of no heating.
C. Because of the changing weather.Who is Linda?
A. The woman's friend.
B. The woman's sister.
C. The man's sister.
What do we know about the woman?
A. She doesn't understand the man.
B. She can't hear the man clearly.
C. She is angry with the man.
What did the woman do last Saturday?
A. She went to the police station.
B. She saw a movie.
C. She visited her partners.
Who were injured in the accident?
A. A baby.
B. Three women.
C. No one.
Who has given up smoking?
A. Jack.
B. Frank.
C. The woman.
Who is the man possibly talking to?
A. A doctor.
B. A teacher.
C. His mother.