1) Is this book interesting? Yes, it is
2) Do you like reading? Yes, i do
3) Does your sister go to school? Yes, she does
4) Did your friend finished school two years ago? Yes, he did
5) Are they students? Yes, they are
6) Will he come tomorrow? Yes, he will
7) Do we study every day? Yes, we do
8) Was i born in Izhevsk? Yes, i was
9) Do we like the film very much? Yes, we do
10) Did i saw my friend yesterday? Yes, i did
11) Shall i tell you the news? Yes, i shall.
12) Does his mother work as a doctor? Yes, she does.
13) Is this work is difficult? Yes, it is.