听对话.选答案. 1. Why can't the woman find her son'

听对话，选答案。
1. Why can't the woman find her son's house?
A. Something is wrong with her eyes.
B. Sydney has changed a lot.
C. She is too old to remember the way.
2. Has she ever been to Sydney?
A. Yes. Several years ago.
B. Yes. Two years ago.
C. Yes. Ten years ago.
3. How did the woman travel to Sydney?
A. By air.
B. By bike.
C. By train.
4. Why doesn't her son e to meet her?
A. He is in trouble.
B. He is too busy.
C. He doesn't know his mother is ing to visit him.
5. What does her son do?
A. He is teacher.
B. He is a worker.
C. He is a doctor.