ГДЗ Английский язык рабочая тетрадь 8 класс Ваулина, страница 26, номер 2

с. № Подчеркни правильную форму

2 Underline the correct item.
1 How long had you been waiting/were you waiting before the bus arrived?
2 Pam went/had gone out with her friends after she had finished her homework.
3 We couldn't leave the lab until we cleaned/had cleaned the culture plates first.
4 I lost my keys as I was walking/had been walking home.

Решение

Вопрос о длительности до момента в прошлом (before the bus arrived): Past Perfect Continuous — had you been waiting.
После «after she had finished» — главное действие следует позже, простое прошедшее: went.
Сначала почистили пластины, потом ушли: «until we had cleaned» — Past Perfect.
Потерял ключи в процессе ходьбы (одновременно, процесс): was walking.

Ответ

had you been waiting; went; had cleaned; was walking.

Помогло?

Страница 26, номер 2 ГДЗ Английский язык рабочая тетрадь 8 класс, Ваулина 2009