Ответ:
В первом:
везде is, кроме последней строки - are.
Во втором:
3)What's 4)are 5)is 6)is
В третьем:
2) aren't
3)isn't
4)amn't
В четвертом:
2) These my parents. Their names are Lucy and Tom. They are in the mountains now.
3)This is my brother. His name is Nick. He is at the stadium now.
4)Is this your cat? What's his name? Where is he?
В пятом:
1) Where are they from?
2)Jack and I are on holidays
3)Jessica isn't at the seaside