Generally, students’ inner motivation with high expectations from others essential to their development.
A. is
B. are
C. was
D. were
网友回答
(答案→)A. is
B. are
C. was
D. were
解析：句意：一般认为，其他人对学生高的期望是他们发展的必要的内部动机对。本句主语是“motivation”，所以谓语动词用单数，而且是一般情况所以用一般现在时。
【考点定位】考查主谓一致和时态。