The woman looked at her like she wasn't quite sure she'd heard correctly.

A woman up front looked to her husband and asked if she had heard correctly.

It was quite possible that he had not heard correctly.

The Arab looked up at her, not certain whether he had heard correctly.

Yes, you heard correctly, I said 30% of the population.

Lou looked at her as if he'd not heard correctly.

For a moment, Fuller wasn't sure he had heard correctly.

John looked at him, unsure that he had heard correctly.

Kirk turned to look at his science officer to be sure he had heard correctly.

For a moment, Kite was not sure he had heard correctly.