favoritism

老师被指控偏爱某些学生，这引起了其他家长的不满。

The teacher was accused of showing ___favoritism towards certain students, which upset other parents.

老师总是让班长回答问题，这引起了其他学生对偏袒的抱怨。

The teacher always lets the monitor answer questions, which has caused complaints about ___favoritism from other students.