I come to the second.

You know Krook, the Chancellor, across the lane.

Come, Jobling," says Mr.Guppy in his encouraging cross-examination-tone, "I think you know Krook, the Chancellor, across the lane ?" "I know him by sight," says Mr.Jobling.
"You know him by sight.

Very well.

And you know little Flite ?" "Everybody knows her," says Mr.Jobling.
"Everybody knows her.