Hearing his father was seriously ill, ______.
He came into the classroom_________.
She couldn’t ______ her words _______ by the students.
—I wonder if she will show up at the concert .----She will . She is only too _______to watch the famous director.
--- Have you ___________ him to give up the job? ---Yes, I have. But he doesn’t listen to me.
That little boy has some trouble _______ in public.