The key answer of exercise 1

a)

1. B
2. a
3. C

b)

1. father → all his life → Aged fifteen; he came home at five in the morning and didn’t call to say he'd be late. → Fine - he has always been very kind to him.
2. Romina - best friend → twelve years → They had an argument over money while they were on holiday last year. → They haven’t seen each other since then.
3. Sarah - a colleague → one year → Sarah was unfriendly and said bad things about her. She said she was lazy and a bad worker. → There is no relationship. She doesn’t know what Sarah is doing now.