Create a hard English proficiency exam

I need a set of multiple choice English exams, 20 questions each exam and each question to have 4 options (a,b,c,d) Section 1 (5 questions) to test: Prepositions Section 2 (5 questions) to test: Subject-Verb and Subject-pronoun agreement Section 3 (5 questions) to test: Avoiding misplaced and dangling modifiers Section 4 (5 questions) to test: Sentence construction: parallel construction and use of commas, semi-colon and colon. The questions need to be very hard / confusing. Only experts in the English language should be able to pass the exam. I expect the exams to be in a word document with the correct answer / choice stated at the end of each question. Please place bids based on 1 exam only (20 questions) for now.