题目

湄公河平原农业生产与美国中部大平原农业生产最大的区别是：前者以精耕细作的人工生产为主，而后者则以农业机械生产为主。造成这种区别的主要原因是（） A . 气候条件 B . 地形条件 C . 经济和科技水平 D . 人口多少 答案：CPeter and James were brothers. One afternoon___the lessons were over, they stayed in school to help their teachers. They___for an hour. Then the teacher said, “Thank you, boys. We will finish the work tomorrow. Now you must go home.” When the boys___home, it was seven o’clock. There was a light inside their house and the door was___. They could see a man inside, too. “Who can it be?” thought Peter. “Father and mother have gone shopping. They won’t be at home___eight o’clock.” When the man___saw Peter, he smiled and said, “Come in! You don’t know me, but I’m your___friend. He has asked me to fetch some money for him.” The man didn’t see James.Peter went inside and began talking to the man but James didn’t. He quickly but quietly ran off to call the police. He soon found a policeman and___him back to their home. The man was still there, but when he saw the policeman, he tried to run off. The policeman___him. Just then Mr. and Mrs. Baker, the boy’s parents ___.【1】A. if B. when C. before D. until【2】A. studied B. worked C. played D. watched【3】A. arrived at B. went to C. got to D. reached【4】A. open B. opened C. opening D. close【5】A. at B. since C. until D. after【6】A. away B. out C. outside D. inside【7】A. father B. fathers C. father’s D. brother’s【8】A. brought B. bring C. take D. caught【9】A. stoped B. stopped C. catch D. saw【10】A. returned B. come C. arrive D. reached