URGENT HIRING: Excellent writer of ESL exercises for High School Students (Mac user)

I am looking for an experienced English writer to write and create ESL exercises for Secondary Students (High School) that would cover the following areas: writing, grammar, vocabulary, reading comprehension, and more.

Requirements:
- native English writer
- perfect grammar
- no spelling errors
- exercises must be returned in a timely manner
- preferably a Mac user and knowledgeable with Pages
- able to work during daytime (PHT)

Answer these (copy and paste):
1. What type of Mac (model/OS) do you own?
2. Rate your knowledge of Pages on a scale of 1-10:
3. How many available hours do you have in a week (up to full time)?
4. Write a short essay about teenagers and social media. (not more than 200 words)

Write "I'm an excellent writer" in the subject line of your application.