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.(?)​

Вот как можно преобразовать данные предложения в отрицательную и вопросительную формы:

a. Anne played tennis yesterday.

• Отрицательная форма: Anne didn't play tennis yesterday.
• Вопросительная форма: Did Anne play tennis yesterday?

b. Your friends ate some hamburgers last night.

• Отрицательная форма: Your friends didn't eat any hamburgers last night.
• Вопросительная форма: Did your friends eat any hamburgers last night?

c. Alex and Chris were in Rio in October.

• Отрицательная форма: Alex and Chris weren't in Rio in October.
• Вопросительная форма: Were Alex and Chris in Rio in October?

d. Betina read a whole book yesterday.

• Отрицательная форма: Betina didn't read a whole book yesterday.
• Вопросительная форма: Did Betina read a whole book yesterday?

Эти преобразования включают использование вспомогательных глаголов "did" и "were" для правильного построения отрицательных и вопросительных форм в прошедшем времени.