ANSWERS ACTIVITY 51
The comments below are just an example. Other alternatives are also possible.

This is a TV commercial for Caltex, a famous Australian oil company.

It features an old lady in a red dress and black shoes coming into a supermarket. She is pulling her personal shopping cart which two wheels seem to be rusty.

At the checkout counter, a shop assistant who is helping another customer, listens to the screeching sound. (Squeaky wheels are really irritating because they make such a high-pitched noise that it grates on your nerves like fingernails on a chalkboard.)

Then, in one of the aisles of the dairy section, the lady takes a carton of milk from one of the supermarket fridges. The considerate assistant takes an oil can from one of the shelves and rushes to put off the squeaking sound from the cart wheels by lubricating them.

On her angelical face the old lady shows a wide smile of appreciation for his help. But, then she seems to remember some products she has not bought yet and goes towards another stand. Then, to your surprise, you can listen that the squeaky noise is in fact coming from her old bones!! The shop assistant can't believe his ears.

This story remembers me of that old saying, "The squeaky wheel gets the grease". That is, if you cry loud enough, you'll eventually get your way.