A．To inform. the woman of the topic of his presentation.
B．To explain Sinclair Lewis' writing style. in detail.
C．To describe some famous biologists.
D．To edit a speech for the woman.

A.To
B.
B．To
C.
C．To
D.
D．To

【参考答案】

A
解析：Why does the man mention Sinclair Lewis?