"He should, undoubtedly, know more than anyone else about that," Francisco answered gravely.
This ties in with what we think, Cohn answered gravely.
The amusement deepened but he answered gravely, "I am not yet married."
A gleam came and went in Lucas's eyes, but he answered gravely.
I am talking to a very dear friend of mine," Rachel answered gravely.
I think it depends on the man,' Web answered gravely.
"He did not have time to say," Barry answered gravely.
His eyes were dancing, though he answered gravely enough.
'For a minute there you looked terrible,' she answered gravely.
But he answered gravely enough after his pause for consideration.