Odpowiedź:
1. How long had Jeff waited before he gave up?
2. How many reports had Ms Harris typed by the lunch break?
3. Where had they lived before they bought a flat in Humpton?
4. How many articles had Brian read before he fell asleep?
5. What trees had grown in the orchard before the Second World War?
6. How long had Tina known Peter before she married him?
7. Whose laptop had I used before I bought my own one?
Wydaje mi się że tak