I/
1. Nga's sisters don't have classes on Saturday
Do Nga's sisters have classes on Saturday?
2. She doesn't watch TV every night
Does she watch TV every night?
3. Mai's teacher does the housework every evening
Does Mai's teacher do the housework every evening?
4. These couches aren't in the living room
Are these couches in the living room?
5. There isn't any bookshelf in Nam's room
There is a bookshelf in Nam's room
6. We don't have literature on Friday
Do you have literature on Friday?
7. Nam isn't watching TV in the living room
Is Nam watching TV in the living room?
8. We live in the country
Do you live in the country?
9. I don't go to school on Sundays
Do you go to school on Sundays?
10. There aren't any apples in the fridge
Are there any apples in the fridge?