Find the one mistake (A, B, C or D) in the sentences and then correct them: "The old woman was  very tired. She tried  to keep her eyes  to open, but she couldn’t."

We work with many people who are different from us because every persons are unique.

my/ father/ keen/ love/ stories/ cartoons/ well/ comics.

Rewrite sentences without changing the meaning:

These students are made to study so much by their parents.

There are some wild roses whose flowers smell sweetly.

For many years, people have wondered that life exits elsewhere in the universe.

It’s convenient to use correction pen for correcting errors.

Humus is formed during soil microorganisms decompose animal and plant material into usable elements by plants 

The bold way in which Margaret Mead defined the terms “family” – based as much on choice as on biological relationship – is possibly the most enduring of her legacies.

 Is the competition open to children among ten and fifteen years of age?

Electric lamps came into widespread use during the early 1900’s and have replaced other type of fat gas, or oil lamps for almost every purpose.

If/ it/ fine/ tomorrow, we/ go/ the/ dentist.

They/ Anna's/ telling/ new/ us/ are/ boyfriend/ about.

The author has not rarely written anything that was not a best-seller.

 I/ satisfied/ the service/ Thanh Ba Post Office

Women/ be/ hard-working/ than/ men/ although/ they/ be/ physically weaker.

Hardly he had got downstairs when the phone stopped ringing yesterday afternoon.

The aeroplane/ be/ considered/ one/ greatest/ inventions/ in our history.

Rudolph Nureyev has become one of the greatest dance the ballet world has ever known.

Materials that of clay are among the most ancient manufactured articles and have played a vital role in human civilization.

I/ can/ send/ you/ references/ the Director of the Happy Mind Charity Centre.