朗读下面短文，体会、领悟虚拟语气的形式与用法。
My deskmate, Mary, treats me as if she were① my sister. She is nice but fat. If she were not so fat, she would look② like a super model. Last year, a doctor advised that she (should) eat③ more vegetables and fruits. He also made a suggestion that she (should) work out④ regularly. Besides, he insisted that she (should) walk⑤ to school. If she had followed the doctor's advice, she would not be⑥ so fat now. In other words, if the doctor had persuaded her to do so, she would not have become⑦ overweight.
This morning, Mary's mother bought her a new dress. It was really nice. But after she tried it on, she couldn't help shouting, “If only I were⑧ a little thinner! How I wish I hadn't eaten⑨ so much junk food before！” Were I Mary, I would make⑩ a weight loss plan. If I became overweight in the future, I would do? sports every day. Now it is high time that she changed? her lifestyle. Without a healthy lifestyle, she wouldn't be? able to lose weight. I would rather she went? swimming with me, but she insists that water sports are? not suitable for her. So it is necessary that she (should) walk? to school.
