听力原文：M: How long have you been working in the laboratory?
W: For almost three years, ever since I got my degree.
M: Your bachelor's?
W: No, my master's. I didn't try to get a job until I had my master's degree.
M: What kind of research do you do? Are you trying to develop new products or something like that?
W: No, that's clone by another group in the lab. The group I'm with is doing basic research.
How long have the woman been working in the lab?
A．Four years.
B．Just three years.
C．Almost three years.

A.
M:
B.
M:
C.
How
D.Four
E.
B．Just
F.
C．Almost
G.