— Could you tell me how _____ cakes? — Sorry, I don’t know.
—Whose hair band is this? —It _____ be Grace’s. She is the only girl at the meeting.
________ the weather report, we will have terrible cold weather this winter. So we should do something to keep warm.
—More and more students wear glasses now. —______.
—Jim, do you know the reason _____ Bob kept silent during the discussion? —I guess he was thinking about his sick dog. It might be dying.
We’ll leave for senior high schools soon. It’s really difficult _______ goodbye to our teachers and friends.