Ответ:

1.Her name's Susana.

2. *My* name's Michael.  

3.We're students. *OUR* teacher's name's Richard.

4.I'm French.My family are from Lyon.

5.It's an Italian restaurant. *Its* name is Luigi's.

6.A.What's *your* phone number?

B.My mobile number?

7.They're Mexican. *Their* surname's Gomez.