单词填写 (共6小题，每小题1分，满分6分)
【小题1】If you are unhappy with the jacket, you can take it back and eexchange it for another.
【小题2】His problem is not physical but mmental .
【小题3】Every student ppossesses a student ID card.
【小题4】Our system has to be fflexible enough to satisfy the needs of different people.
【小题5】Nowadays some children are aaddicted to puter games.
【小题6】Nobody can ppredict what will happen in the future.
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解析：
【小题1】exchange 动词交换，构成固定词组exchange sth for sth用…交换…
【小题2】mental 形容词精神上的mental与前面的physical形成呼应结构
【小题3】possesses 动词占有，拥有possess。注意该词的名词形式possession.
【小题4】flexible 形容词灵活的flexible.
【小题5】addicted 固定词组be addicted to…沉溺于…；染上…的习惯。
【小题6】predict 动词预测predict。