Ask questions to these sentences and make them negative. 1. my children are at college. 2. there are some people in the library now. 3. we have math classes twice a week. 4. helen is fond of scuba diving. 5. it is common here to give a waiter a tip. 6. i am proud of my parents. 7. my uncle has a big house in the village. 8. we are interested in programming. 9. there are lots of historical monuments in paris. 10. my parents have three children. 11. trains are more reliable than buses. 12. my friend is keen on rock music.
