I really found it difficult to read, for his eyesight was beginning to________.
________ 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.
—Let’s climb the mountain.—I don’t agree. _______ the mountain will make us exhausted.