---How many new words will you study in ________ lesson?---Only ________.
—It ____Mark’s watch. ____your watch is in your bag.
—____she is very tired, ____Sue doesn’t stop working.
—Are you busy this weekend? — Yes, my mother wants me ____the house.
—_____do they go to movies? — Once a month.
—I think______is not easy to draw this picture. —I think so.