PART II. Read the passage carefully and answer the questions below. (1pt) Mr and Mrs. Brown lived in a small house near London with their child. Sometimes Mr. Brown came back home very late (at midnight), when is wife and the child were asleep. Then he open the front door of his house with his key and came in very quietly. One night, he came home at midnight. He lost his key, so when he arrived home, he rang the doorbell. Nothing happened. He rang it again. Again nothing happened. Nobody moved inside the house.. Mr. Brown knocked at the bedroom window, he spoke to his wife, he shouted, but she did not wake up. A last he stopped and thought for a few seconds. Then he began to speak like a small child. "Mummy!" h said, "I want to use the bathroom!" He spoke quietly but at once Mrs Brown woke up. Then he spoke her, and she opened the door for him. Questions: 76. How many children does Mr. Brown have? 77. What time did Mr. Brown come home one night? 78. Why didn't he open the door to come in? 79. How many times did he try to ring the doorbell? 80. How did he wake his wife?