Rewrite sentences without changing the meaning

Stress and tiredness often leads to lack of concentration.

Each sentence has a mistake. Find it by choosing the letter A, B, C or D.

Would you be enough kind to open the doors please?

Each sentence has a mistake. Find it by choosing the letter A, B, C or D.

Her brother is interested in to join the English Club

Rewrite sentences without changing the meaning

These students are made to study so much by their parents

Choose the letter A, B, C or D to complete the sentences with given words

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

Each sentence has a mistake. Find it by choosing the letter A, B, C or D.

She is a studious child because she never forget to do homework

Each sentence has a mistake. Find it by choosing the letter A, B, C or D.

What would be the most effect way of marketing our goods?