Salut!
1) Anna's parents went to special doctors, and picked her as an embryo so she could be a perfect genetic match to save her sister's life.
2) We can deduce that Kate has health issues: she needs a kidney transplantation.
3) A spare parts baby is a baby that's born as a perfect genetic match to someone else, so that their parts and organs can be used and given to the other person whenever needed.
4) Campbell isn't an expert on stem cell research. He's a lawyer and only knows a few things about this type of research from the news, as he stated in the text.
5)Anna is afraid they'll keep using her organs to save her sister and never stop. She said, as stated in the text, "Because, it never stops"
6) The adjectives that best describe Campbell are cynical, opportunist, and money-minded.
Campbell chose to take this case right away because of how greatly it would boost his publicity. This shows how cynical he is as he only did did this to satisfy his selfish needs. He also appears to be money-minded and opportunist as he is taking advantage of Anna's case to advance his career and reputation - his main focus being on the huge amount of money he'll receive after he wins.
7) Anna is a brave girl because she dared to go to a lawyer and sue her parents. Although very young, she's aware of the position her parents put her in, as her sister's organ donor, and was smart enough to realise that it's wrong and that she shouldn't be forced to ruin her health for someone else.
