Очень срочно помогите с английским

Поставьте предложения в отрицательную форму, задайте общий и специальные вопросы.
Conan Doyle studied medicine at the University.
Отрицание Conan Doyle didn't study medicine at the University.
Общий вопрос Did Conan Doyle study medicine at the University?
Специальные вопросы:
Что делал? What did Conan Doyle do at the University?
Что изучал? What did Conan Doyle study at the University?
Где изучал? Where did Conan Doyle study medicine?
2)My friends got home late at night last weekend.
Отрицание My friends didn't get home late at night last weekend.
Общий вопрос Did my friends get home late at night last weekend?
Специальные вопросы:
Что делали? What did my friends do late at night last weekend?
Когда? When did my friends get home last weekend?
Во сколько? What time did my friends get home last weekend?
Чьи друзья? Whose friends got home late at night last weekend?
3)I invited 10 guests at my birthday party last Sunday.
Отрицание I didn't invite 10 guests at my birthday party last Sunday.
Общий вопрос Did I invite 10 guests at my birthday party last Sunday?
Специальные вопросы:
Куда? Where did I invite 10 guests last Sunday?
Сколько? How many guests did I invite to my birthday party last Sunday?