1. I am a student.
2. My father is not a teacher.
3. Is your aunt a doctor?
4. Are they at home?
5.Are you an engineer?
6.My sister is at work.
7.It is difficult to find a job now.
8.How old are you?
9.I am very sorry about it.
10.They are busy with their report today.
11.Ann is a second-year student.
12.My hobby is drawing.
13.What are you fond of?
14.Three days are long enough for a good holiday.
15.My mother is the only person I can talk to.
16.The students are in the laboratory.
17.Helen is a baby-sister.
18.What kind of film is it? - It is too boring.
19.Is it warm in September?
20.Kate`s father is a tall man.