—Why do you look so worried?—My computer broke down and my essay ______ unfinished since.
—Would you like me to help you with the maths problem? —___________ It’s a most difficult one.
—___________? —Something special?Great!I’m starving.
—Don’t forget to post the letter for me,will you? —___________.
—I’m sorry I forgot to post the letter for you. —___________.I’ll post it myself,then.
—You didn’t get hurt at all in the traffic accident? —___________.I was a lucky dog.