老师对我们在早操上的表现不满意（翻译成英文）用be satisfied

The teacher was not satisfied with our morning exercise.
这里的“表现”是中文的表达方法，在英语中可以不用翻出来
早操是morning exercise，固定用法，不加s

The teacher was not satisfied with our performances in the morning exercise.

our teacher was not satisified with our perfumance in morning exercise.

The teacher was not satisfied with your behaviour during morning exercises.

The teacher is not satisfied with our morning exercise.