He followed Mr. Read so that A. he could do shopping in Mr. Read’s shop B. nobody would see him ——青夏教育精英家教网—

He followed Mr. Read so that A. he could do shopping in Mr. Read’s shop B. nobody would see him C. he cou1d find the bus stop D. the sun wouldn't shine on him IV. 补全对话 A: How was your vacation, Li Lei? B: 1 I went to Beijing with my parents. A: Cool! Where did you go in Beijing? B: We went to the Summer Palace, the Palace Museum, the Great Wall and so on. A: 2 B: It’s interesting. I really like the Palace Museum. It has many beautiful things from different dynasties. A: 3 B: Yes, I did. l saw Jackie Chan on the Great Wall. 4 A: Wow, that's great! Can you show me the photos? B: Sure, 5 A. Did you see any popular stars? B. What do you think of Beijing? C. What does Jackie Chan look like? D. I will bring them to school tomorrow. E. It was great! F. And I took some photos with him! G. I went there by plane. 【查看更多】

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（2013•海淀区二模）如图1，在直角梯形ABCD中，∠ABC=∠DAB=90°，∠CAB=30°，BC=2，AD=4．把△DAC沿对角线AC折起到△PAC的位置，如图2所示，使得点P在平面ABC上的正投影H恰好落在线段AC上，连接PB，点E，F分别为线段PA，PB的中点．
（Ⅰ）求证：平面EFH∥平面PBC；
（Ⅱ）求直线HE与平面PHB所成角的正弦值；
（Ⅲ）在棱PA上是否存在一点M，使得M到P，H，A，F四点的距离相等？请说明理由．

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