Make the sentences negative and interrogative:
1.My brother has a comfortable new flat.
2.I have got many friends at school.
3.My sister had a lot of toys in her childhood.
4.Children usually have lunch at school.
5.Students will have a seminar next week.
6.They had a good rest at the seaside last year.
7.His wife has to stay at home with her children.
8.I have two uncles and on aunt.
9.I had a good time last weekend.
10.They have all modern conveniences in their flat.
11.I often have a headache in the evening.
12.He has many books on History in his library.
13.The first-year students have to work hard.
14.Father has got a lot of technical books in his study.
15.We have many relatives in Moscow.