Объяснение:
1) Ann is not at school. Is Ann at school?
2) Mr. Brown is not a teacher. Is Mr. Brown a teacher?
3) You are not an economist. Are you an economist?
4) We are not of the same age. Are we of the same age?
5) Peter is not a student. Is Peter a student?
6) His name is not Tom. Is his name Tom?
7) They are not twins. Are they twins?
8)He is not 47 years old. Is he 47 years old?
9)We are not the first year students. Are we the first year students?
10)My family is not very united. Is my family very united?