Are the below mentioned sentences correct? Please advise

English as a Second Language English Vocabulary, Grammar and Idioms
1
  1. Doctor will perform/run a diagnosis on you to see what is the cause of your illness.
  2. Doctor will perform/run a diagnosis to determine why you are having hair loss problem.
  3. Which volunteering work/work area in our cafe are you interested in?
  4. We have many volunteering works in different area in our cafe.

Are the above mentioned sentences correct? Please advise

2
  1. A/The doctor will diagnose you to see what is the cause of your illness.
  2. A/The doctor will make a diagnosis determining why you are having hair loss problem.

You appear to be confusing ‘diagnosis’ with ‘examination’. You examine a person in order to make a diagnosis (in order to identify the nature of the illness).

  1. What type of voluntary work (in our cafe) are you interested in?
  2. We have many volunteer roles in different area of our cafe.
    If you are interested in volunteering to work in our cafe please let us know.