1.1: hungry
1.2: Russian
1.3: hot
1.4: awful
1.5: Spanish
1.6: old
1.7: thirsty
1.8: expensive
1.9: Brazil
1.10: excited
2.1: where
2.2: it
2.3: her
2.4: how
2.5: don't
2.6: why
3.1: I don't like football.
3.2: How old is your brother?
3.3: Are they from Italy?
3.4: It isn't an expensive computer.
3.5: He's the new boy in the class. I like him.
3.6: Who is your favourite singer?
4.1: A: is; B: from
4.2: A: where; B: are
4.3: A: do; B: is
4.4: A: don't; B: love/like (здесь оба варианта подходят)