VI.
1. (-) they weren't in rio last summer
(?) were they in rio last summer
2. (-) we didn't our exercise this morning
(?) did we our exercise this morning
3. (-) my parents didn't come to visit me last july
(?) did my parents come to visit me last july
4. (-) the hotel wasn't very expensive
(?) was the hotel be very expensive
5. (-) i didn't have a bicycle when i was young
(?) did i have a bicycle when i was young
6. the children didn't go to the zoo yesterday
(?) did the children go to the zoo yesterday
7. peter didn't eat the last cake
(?) did peter eat the last cake
8. they didn' buy a new house last month
(?) did they buy a new house last month
