I covered my mouth with both hands to stop the sound.

He covered the little man's mouth with his hand, and looked again.

Before she could say a word, he covered her mouth with his once more.

Then a strong hand covered his mouth and he couldn't make a sound.

And covered her mouth with his before she could open it.

He put a hand up to cover his nose and mouth.

My hands were busy and I couldn't cover her mouth.

Then, he said, she covered the child's mouth with her hand.

I covered my mouth with both hands and watched him reach into the head.

She turned and, still covering her mouth, ran into the building.