I thought he was pondering what I said until he spoke up.
They all sat pondering the strange events.
So the text "the myrmekoleon bath perished for that he had no nourishment" set them pondering, and others reproduced their meditations, with the following result: "The Physiologus relates about the ant-lion: his father hath the shape of a lion, his mother that of an ant; the father liveth upon flesh, and the mother upon herbs.
Edith hesitated, as if pondering her answer.
If Ed could actually talk, she wouldn't be spending so much time pondering about Alex.