13. make the following sentences interrogative. 1. mr.brown walked to his office. 2. the boys tried to understand the lesson. 3. you believed what he said. 4. he wrote to his brother every day. 5. the baker sold good cakes. 6. the lesson began at nine o’clock. 7. they all went to the football match. 8. she said she was very busy. 9. mr. smith caught the eight o’clock train. 10. we bought that fruit from greece.

1. Did Mr.Brown walk to his office? 2. Did the boys try to understand the lesson? 3. Did you believe what he said? 4. Did he write to his brother every day? 5. Did the baker sell good cakes? 6. Did the lesson begin at nine o’clock? 7. Did they all go to the football match? 8. Did she say she was very busy? 9. Did Mr. Smith catch the eight o’clock train? 10. Did we buy that fruit from Greece?

Все предложения написаны в времени( Past Simple Tense), вопросительная форма строится при далее Подлежащее + глагол в первой форме если это неправильный глагол или без окончания ed, если это правильный глагол.