1) Are your friend's room is big? No, it's small, but very bright.
2) You are not answered Boris's question yesterday.
3) Are your friend's wife speaks good German? Yes, very good.
4) Whose are these notebooks? These are student's notebooks.
5) Do you know Smirnov's friends? Yes, I do.
6) Ivanov's wife is engineer, and his sister is doctor.
7) What name of your son?