听第一段材料，回答第1至3题。
1. Why does the woman call Mr. Johnson?
A. To introduce a job.
B. To set up a laboratory.
C. To go to a college.
2. How did the Job Center get to know Johnson?
A. Johnson phoned them.
B. Johnson e-mailed them
C. Johnson helped them.
3. What makes Johnson think more about it?
A. The equipment. B. The em
