---I failed in the exam again. I am sorry to let you down, Mum.--- , dear. I know you’re doing better now.
—Call me up if it’s________to you tonight.—Sure.
—What are they doing at the bus stop?—They are waiting for a bus________.
—What happened________him?—He hurt himself.
We were surprised________that news.
When I got home,it was raining________.