Ответ:
1. Neither Sarah nor her sisters are very tall.
2. I don’t like either football or rugby very much.
3. John Brick is both thoughtful and generous.
4. The shop assistant in the shop persuaded me to buy both the skirt and the jacket.
5. Neither Bob nor Sam went to university.
6. Adult crocodiles are both strong and lively.
7. You can have either a cake or a doughnut.