3. Change the sentences into Negative or Interrogative forms: a. Anne played tennis yesterday. (-) b. Your friends ate some hamburgers last night. (?) c. Alex and Chris were in Rio in October. (-) d. Betina read a whole book yesterday.(?)

Here are the sentences changed to negative and interrogative forms: a. Anne played tennis yesterday. Negative: Anne didn't play tennis yesterday. Interrogative: Did Anne play tennis yesterday? b. Your friends ate some hamburgers last night. Interrogative: Did your friends eat some hamburgers last night? c. Alex and Chris were in Rio in October. Negative: Alex and Chris weren't in Rio in October. d. Betina read a whole book yesterday. Interrogative: Did Betina read a whole book yesterday? Объяснение: * Чтобы сделать предложение отрицательным в простом прошедшем времени, используйте "didn't + глагол в начальной форме". * Чтобы задать вопрос в простом прошедшем времени, используйте "Did + подлежащее + глагол в начальной форме".