"Okay," I said, struggling not to sound astonished or doubtful.

"Anything is possible in these times," Roland said, but he sounded doubtful.

Sounds doubtful, Cassie, but maybe you got one this time.

I don't mean to sound doubtful about what you are saying, Kate.

He sounded very doubtful, though, and she could see the trouble in his face.

If this statement sounds doubtful, step into a classroom holding 75 students.

Being a man, he could not understand why she should sound so doubtful.

"If you think we should take the time," Douglas said, sounding doubtful.

He sounded doubtful, and Rand looked at him in confusion.

The words sounded doubtful and hopeful at the same time.