根据自己的理解,用简单的英语解释下列句子.
1.IfI'mnotinvited,Iwon'tgototheparty.
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2.Isthisbooknotthesameasthatone?
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3.Therewassomethingwrongwiththecarlastnight.
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4.Hisillnesswascausedbyagreatdealofwork.
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5.Jasonsentmeapackageintheformofpost.
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