Respuesta :

It's a beautiful day, isn't it? 
Martha is angry, isn't she? 
I'm late, aren't I? 
You can play the violin, can't you? 
You went to Costa Rica in 1990, didn't you? 
Carol is fat, is she?
Mark is peaceful, isn't he?
The are uglyes, aren't they?
Toda isn't raining, is it?
She have a beautiful smile, haven't she?

El verbo to be, es el verbo ser/ estar en español y se conjuga de la siguiente manera:

Sujeto                          Presente                  Pasado

I                    →                am              →           was

You               →                are              →           were

He/She/It     →                 is                →            was

We                →                 are             →           were

They            →                 are             →           were

  1. I like to go to class, I am a good student.
  2. We were going to the cinema but we lost the tickets.
  3. She is a very good dancer.
  4. He is going to start the University next year.
  5. They were at my place yestarday.
  6. He went to the doctor yesterday because he was sick.
  7. The sky look like it is going to rain.
  8. Brian is looking for you.
  9. They are old friends, they've known each other for years.
  10. He is my brother, he is older than me.
  11. He got his major in law, he was a really good student.
  12. We are cousins, my mom and his dad are sibilings.
  13. He is from Ireland but was raised in England.
  14. I am going to travel a lot this year.
  15. She plays football, she is the capitain.
  16. We saw a movie last week, it was amazing.
  17. She is going to a concert next month.
  18. We are having a goodbye party.
  19. Yesterday was a rainy day.
  20. Louisa is married to my brother.
  21. I´m making my homework with my sisters help.
  22. My sister is taller than me.
  23. They were at a party, and overslept.
  24. We're going to visit you soon.
  25. I am buying new clothes.
  26. Carl is the tallest boy in class.
  27. Movies are better when they're funny.
  28. The sky is clear.
  29. I like the shirt my sister is wearing.
  30. Louis is the oldest member of the band.
  31. The black car is mine.
  32. The cat is black with white stripes.
  33. That pencil is mine.
  34. She is running late for class.
  35. Frank is a Doctor, he studied with my dad.
  36. My dad is going to help me.
  37. I am going to start the gym on Monday.
  38. We were having a great time.