—You watched the fashion show last night, didn't you?

—Yes,  ________ I missed the beginning. [ ]

A. so

B. and

C. but

D. then

勒温认为要理解和描述行为，必须同时考虑人和其()。

A、情绪状态

B、过去的经验

C、个性特征

D、所处的情境