如图，四边形ABCD与四边形A′B′C′D′全等，则∠A′=____ ，∠A=____ ，B′C′=____ ，AD=____ ．

周末，初中生小刚与同学约好到公园参加护绿活动，途中发现路边的下水道井盖不见了。为防止误伤行人，他守在井口边，并打电话向路政部门反映情况，直到维修人员赶到才离开，结果耽误了约定的活动。你对小刚这一做法的评价是（    ）

    Mr. and Mrs. Brown lived in a small town near London with their children. Sometimes Mr. Brown came back home from work very late, when his wife and the children were asleep, and then he opened the front door of this house with his key and came in very quietly. But one night when he was coming home very late, he lost his key, so when he reached his house, he rang the bell. Nothing happened. He rang it again. Again nothing happened. Nobody moved inside the house. Mr. Brown knocked at(敲)the bedroom window, he spoke to his wife, he shouted, but she didn't wake up. At last he stopped and thought for a moment. Then he began to speak like a small child. "Mother! "he said. "I want to go to the toilet!" He spoke quite quietly but at once Mrs. Brown woke up. Then he spoke to her, and she opened the door for him.