期望理论认为一个人的动机是三个普通观念的产物，即()
A.价值
B.绩效获奖估计
C.期望
D.需要
参考答案：B, C, D
I had ______ feeling of happiness when I heard that he had made ______ great progress.
A．a; a
B．the; a
C．the; 不填
D．a; 不填
My uncle lives ____ 88 Beijing Street. [ ]
A. to
B. of
C. at
D. on
