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一、词汇复习 根据Reading部分的文章将短文补充完整 Police who took 1.　　　　　 of the 2.　　　　　 in which a boy named Justin went missing have 3.　　　　　 up their search for him.People have shown great interest in his disappearance 4.　　　　　 reports of strange lights in the sky and of alien visits around the time of his 5. 　　 　　　. 

charge　

case　

stepped　

due to　

disappearance