Read the following paragraph and answer the questions followed. A few days ago, when my watch said 7:30, I dashed out and whirled downstairs , got on a motorcycle and rocketed to the campus. To my surprise, the whole campus was so quiet ! And I suddenly realized that I had forgotten about the shift of winter timetable again. What is the way used here to open up a topic? 2. What might be the topic of the essay?