You will lose your position if you don't keep your temper.

He looked calm, but actually he was very nervous.

He gradually recovered his temper.

He soon recovered his composure.

His calmness is more apparent than real.

He was calm in the face of great danger.

Marcy burst into tears on hearing the news, but soon pulled herself together.

The injured man is now at rest.

The strike had not been peaceful, however, and Rev. Martin Luther King, Jr. begged both sides to be patient and calm.

Despite the pain, he put on a brave face.

Tom tried to stay calm.

Tom put on a brave face.

She put on a brave face and kept on smiling.