题目

I just ended a six year relationship. I found myself alone, feeling ________, often with an empty room for company (陪伴) on weekends. For the first time, I wondered if I had a mental ________.After weeks of feeling ________ and sitting on my sofa crying, I decided to take action to turn my ________ around. I realized I didn’t have disease. I just hadn’t been meeting my basic needs in a ________ and balanced way.After taking action to ________ a new diploma (文凭), I reflected (思考) on how much better after I was meeting my basic needs, and how happy and ________ I felt as a result.如图，已知矩形ABCD的边长AB=2，BC=3，点Q是BC边的中点，点P是AD边上的一个动点，PE∥DQ交AQ于点E，PF∥AQ交DQ于点F．（1）四边形PEQF的形状是______．（2）当P运动到什么位置时，四边形PEQF是菱形？并说明理由．（3）四边形PEQF______为正方形（填“可能”或“不可能”）．