scowl|scowled|scowling

老师皱着眉头看着我，因为她对我的作业不满意。

The teacher gave me a ___scowl because she was unhappy with my homework.

老师对吵闹的学生皱起了眉头。

The teacher ___scowled at the noisy students.

他因为迟到被老板训斥，一直皱着眉头站在那里。

He stood there ___scowling after being scolded by the boss for being late.