根据首字母填空（共5 小题；每小题1分，满分5分）
71. He ran across to the o71. opposite 72. throughout 73. represent 74. plex 75. confident side of the street.
72. We Chinese have friends t the world.
73. They drew simple pictures or signs to r things and ideas, and also the sounds of their language.
74. His situation is very c , so no one is willing to get involved.
75. He feels c of passing the examination.
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