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Ⅰ.单词拼写 1．When the girl entered the exhibition hall，she was attracted by the poster(s)(海报)of her favorite pop star. 2．We don't think it too difficult to master(掌握)a foreign language. 3．The new aircraft has performed very well in its initial(最初的)trials. 4．In case of emergency(紧急情况)，please press this button. 5．The kids were chasing(追逐)each other around the kitchen table when I saw them. 6．It's necessary to have an exit on each floor of the building in case of a fire. 7．Everyone bowed as the Queen walked into the room. 8．Air is invisible but we can feel its motion when there is a wind. 9．It is not appropriate to wear jeans to a formal party. 10．There is no doubt that Liu Xiang is an outstanding athlete because he won the 110mter hurdles at the 2004 Athens Olympic Games. Ⅱ.同义转换 1．He or she might decide to tell different jokes to respond to the reactions of an audience. →He or she might decide to tell different jokes in_response_to the reactions of an audience. 2．Doctors have been researching what effect standup and other forms of comedy affect us. →Doctors have been researching what effect standup and other forms of comedy have on us. | 
