_______ could be judged from her eyes that she was terribly sorry for what he had done.[ ]

For a moment nothing happened; then______ from the excited audience.

If he _______ to the teacher attentively in the past year, he _______the answer to the question now.

The newly-built house is the old one

What ________ it be? — It can’t be a mail box, for it’s moving. It ________ be a car. [ ]