Решение:
Нужно задать специальные вопросы к данным утверждениям.
- - They ate soup.
Вопрос: What did they eat? - 1. They write tests.
Вопрос: What do they write? - 2. - They are writing a test.
Вопрос: What are they writing? - 3. - He is writing a test.
Вопрос: What is he writing? - 4. - He writes tests.
Вопрос: What does he write? - 5. - He wrote a test.
Вопрос: What did he write? - 6. - He can write a test.
Вопрос: What can he write? - 7. - He must write a test.
Вопрос: What must he write?
Ответ: специальные вопросы к утверждениям.