4.My friends __________ (not to do) their homework at seven o'clock yesterday. They __________ (to play) volleyball.

Ответ (RU):

1. В первом пропуске необходимо употребить глагол not to do в Past Continuous. Так как действие происходило в определенный момент в прошлом (в семь часов вчера), используем форму прошедшего продолженного времени с отрицанием. Получаем: My friends were not doing their homework at seven o'clock yesterday. Во втором пропуске нужно употребить глагол to play в Past Continuous, поскольку действие происходило в определенный момент в прошлом. Получаем: They were playing volleyball.

Перевод (EN):

1. In the first gap, we need to use the verb not to do in the Past Continuous. Since the action was happening at a specific time in the past (at seven o'clock yesterday), we use the past continuous form with negation. We get: My friends were not doing their homework at seven o'clock yesterday. In the second gap, we need to use the verb to play in the Past Continuous, since the action was happening at a specific time in the past. We get: They were playing volleyball.