Complete the sentences. Marta is Alvaro’s sister .
1 Alvaro is brother.
2 Cecilia is sister-in-law.
3 Eduardo is Cecilia’s .
4 Marta is Manuel’s .
5 Marta, Pedro and Alvaro are Cecilia’s .
6 Pedro is Eduardo’s .
7 Marcela is mother-in-law.
8 Juan is Alvaro’s .
9 is Marta’s father