—I telephoned him twice and I couldn’t get through to his home. —I think the line might have been out of order, ________?
—I guess I must leave now. See you tomorrow. —________! I have some important information for you.
—I'm worrying about the coming examination. I'm afraid I cannot pass it. —________! I'm sure you'll make it.
—Do you think I should accept the invitation to his birthday party? —________ If I were in your shoes, I certainly would.
—I forgot to bring my pen for the lecture. —________. I have got a spare one.
—I am going to Shanghai on a free trip this weekend. —________