pls help to point out the mistakes in the below sentenses(two in each item),
explain why they are errors and provide the correct answers ,thanks.
1)Enclosed please find an application form that you should return as soon as possible.
2)Pursuant to your letter of 20 November, I am writing in regard to your inquire about whether we offer our patio umbrella in colours, The anser is yes:
off white and forest green.