B4. Make ‘yes / no’ or ‘wh’ questions with past perfect tense.
1. What____had they cook______(they/cook) for dinner the night before last night?
2. When_____do you arrive_____ (you/ arrive)?
3. How many glasses of beer____had he drink______ (he/drink) before he went out?
4. Where_____had she work_____ (she/ work) before she move to this company?
5. _______had i pay___ (I/ pay) the bill before we left?
6. ______had we visit____(we/ visit) my parents already before that winter?
7. When you called, _____Had they finish_____(they/ finish) dinner?
8. How_______had he manage___(he/manage) to fix the cooker when you came in?
9. We were late for the plane because we_____had forgotten_____(forget) our passports.
10. She told me that she____had studyed______(study) a lot before the exam.