He started to say something, and then shut his mouth.

I shut my mouth for the next four or five hours.

But I shut my big mouth and let her change the subject.

Why don't I ever learn to just shut my mouth?

She shut her mouth, and thought the rest for them only.

I started to ask him where he was going and then shut my mouth.

"You have just about shut my mouth by your first order."

He shut his mouth, then opened it and tried again.

He shut his mouth, opened it again, then decided not to say anything.

"Then shut your mouth and let me answer the question, all right?"