Underline the most suitable verb form in each sentence. The first one is done for you. 1 I suddenly remembered that I forgot / had forgotten my keys. 2 While Diana watched / was watching her favourite television programme, there was a power cut. 3 Tom used to live / would live in the house at the end of the street. 4 Who was driving / drove the car at the time of the accident? 5 By the time Sheila got back, Chris went / had gone. 6 David ate / had eaten Japanese food before, so he knew what to order. 7 I did / was doing some shopping yesterday, when I saw that Dutch friend of yours. 8 I used to like / was liking sweets much more than I do now. 9 What exactly were you doing / did you do when I came into your office yesterday? 10 Laura missed the party because no-one was telling / had told her about it. 11 Tanya would / used to be a doctor.

Вот подходящие формы (и почему):

1. I suddenly remembered that I had forgotten my keys. — действие “забыть” произошло раньше другого прошедшего (“вспомнил”) → Past Perfect.

2. While Diana was watching her favourite television programme, there was a power cut. — длительное действие в прошлом, прерванное другим событием → Past Continuous.

3. Tom used to live in the house at the end of the street. — прошлая привычка/состояние, которое уже не актуально → used to.

4. Who was driving the car at the time of the accident? — интересуемся действием, происходившим в конкретный момент → Past Continuous.

5. By the time Sheila got back, Chris had gone. — одно прошлое действие завершилось раньше другого → Past Perfect.

6. David had eaten Japanese food before, so he knew what to order. — предшествующий опыт до другого прошлого момента → Past Perfect.

7. I was doing some shopping yesterday, when I saw that Dutch friend of yours. — фоновое длительное действие, прервано другим → Past Continuous.

8. I used to like sweets much more than I do now. — прежнее состояние/привычка в прошлом → used to (не Continuous со статичным глаголом like).

9. What exactly were you doing when I came into your office yesterday? — действие в процессе в конкретный момент → Past Continuous.

10. Laura missed the party because no-one had told her about it. — отсутствие сообщения произошло до “пропустила” → Past Perfect.

11. Tanya used to be a doctor. — прошлое состояние (стативный глагол be) → used to, а не would.