FCE – Key Word Transformations with Keys, Knowledge Sharing Program, 2014. —199 p(PDF).
The important thing in key word transformations is that you keep the meaning the same -EXACTLY the same. So it’s important that you read through the first sentence and your second sentence to ensure you have kept the meaning the same.
A good way to practise this part of the FCE exam is to get used to writing and re-writing sentences using different structures and without changing the meaning.