Jack’s sister has been a tour guide _______two years ago.
—Where is my little dog?—It the back of the house.
—People find it hard to get across the river.—I think at least two bridges over it.
—What’s your speech , Dr.Smith ?—Tomorrow you will get it.
—What do you think of Beijing Opera?
—Excuse me,could you please your cigarette?——Sorry, I won’t.