Practice makes perfect.
Here are some past papers that you can have a go at.

Source: http://www.edexcel.com/Pages/Home.aspx
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Unknown user,
Feb 5, 2013, 5:39 PM
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Unknown user,
Feb 5, 2013, 5:39 PM
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Unknown user,
Feb 5, 2013, 5:40 PM
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Unknown user,
Feb 5, 2013, 5:41 PM
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