Tip 1 - Remember: the gap should be filled with five words or fewer. Contractions count as two words, not one.
Tip 2 - Make absolutely sure that the two sentences mean the same thing. For example, if the sentence to transform has names in it, the answer will have to have them too.
Tip 3 - Remember that the word given (e.g. short in the example) must be included in the answer, and cannot be altered in any way (i.e. can not be changed to 'shorter' or 'shortness').