Предполагая, что это упражнение по пониманию прочитанного текста, и что полные предложения должны соответствовать контексту оригинального текста, вот возможные завершения предложений:
- When the Littles played ping-pong, the balls always flew off the table.
- Stuart pushed the balls with his nose.
- One of the keys was missing.
- When the key stuck, George always tried to fix it.
- Inside every piano there is a lot of strings.
- You hear music because each hammer strikes a string.
- Stuart had an idea every time it struck.
- Mr. Little said they mustn't mention the cat.
- In the song "Three Blind Mice" the farmer's wife cut off their tails.
- Mr. Little was afraid that one day Stuart would be eaten by a cat.