题目

I couldn't help you with the problems then, for I was o__________with my homework. (根据首字母填空) 答案:【答案】occupied【解析】考查固定短语。句意:那时,我不能帮你解决问题,因为我忙于做家庭作业。be occupied with忙于做,该短语是固定短语,所以填occupied。12.下列变化,属于物理变化的是(  )A.煤燃烧B.刀生锈C.菜腐烂D.汽油挥发
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