Помогите пожалуйста. Поставьте последующие предложения в отрицательную и вопросительную форму. 1.My

1.My pen is thin.
a) My pen isnt thin.
b) Is my pen thin?
2. Kate is a teacher.
a) Kate isnt a teacher.
b) Is Kate a teacher?
3. She is opening the exercise- book.
a) She isnt opening the exercise-book.
b) Is she opening the exercise-book?
4. Jake is an engineer.
a) Jake isnt an engineer.
b) Is Jake an engineer?
5. I m closing the door.
a) I am not closing the door.
b) Am I closing the door?
6. Tom is a good boy.
a) Tom isnt a good boy.
b) Is Tom a good boy?
7. This is my book.
a) This is not my book.
b) Is this my book?