1. The reason for the cat's illness is because she was allergic to the dog.
2. The driving exam is when one is tested on he rules of the road.
The cat's allegy to the dog caused her illness.
Using "is because" and "is when" makes very awkward, confusing sentences.
Make the verb "active" instead of "passive".
In the other sentences... "tests" is the verb.
Let us know if you have further questions.
What is your question? These two sentences are awkwardly written. Are you supposed to correct them?
Please clarify and we'll be glad to help you.
Thank you for using the Jiskha Homework Help Forum. In the 2nd sentence, be sure to spell "he" as "the rules of the road." Or, "the driving exam tests the rules of the road."