Задать специальные вопросы (who, when, where, which и т. д., все которые возможно, а не только одно) к предложениям:
1) Betty went to the cinema with her best friend yesterday.
2) Sam usually gets bad marks because he is very lazy.
3) The boys are watching cartoons.
4) Mr. Smith will come here at 7 tomorrow.
5) Chris has just opened the window