Задать к каждому предложению три вопроса общий специальный и вопрос к подлежащиму: mrs.brown saw a new film yesterday. students must work hard today. jack has already begun to read a new book.

Did Mrs.Brown see a new film yesterday?
Who saw a new film yesterday?
What did Mrs.Brown see yesterday?

Must students work hard today?
Who must work hard today?
When must students work hard?

Has Jack begun to read a new book yet?
Who has begun to read a new book yet?
What has Jack begun to read?