Choose the correct variant

1. [Did you turn | Had you turned] off the gas before you left?
2. After the sun
   [rose | had risen], fish stopped biting the bait and we left.
3. Hardly
   [had the journalists broken | did the journalists break] the news, when more news followed.
4. How did you hope to stay at the hotel at high season if you
   [had not booked | did not book] it?
5. I
   [had not seen | did not see] such a splendid beach before we went to Florida.
6. I see that you
   [had not even opened | did not even open] your coursebook before the exam.
7. The man was exhausted because he
   [did not eat | had not eaten] for three days.
8. We
   [became | had become] very close friends before we parted.
9. By twelve o'clock the exam
   [was | had been] over and the room was empty.
10. The driver
    [had made | made] a sudden turn left before bringing his car to a halt.
11. The hall was overcrowded because too many people
    [had turned up | turned up].
12. The old woman
    [had been | was] very lonely before that stray dog settled in her little apartment.
13. This business
    [brought | had brought] the owner high profits but then the situation changed.
14. This cow
    [produced | had produced] a lot of milk but the owner decided to sell it.
15. We
    [had | had had] that car for ten years when we started to have trouble with it.