She is very good / well at climbing
She is very good at climbing
I went to the beach and swam with parents, then we flew a kite.
I went to the beach and swam with my parents, then we flew a kite.
You have to bring a pencil and an art / art's book
You have to bring a pencil and an art book
I want to be a friend of him because he is funny
I want to be a friend of his because he is funny
OR
I want to be his friend because he is funny
We meet / are meeting at 5 p.m. tomorrow
We are meeting at 5 p.m. tomorrow
I going to Mexico to visit Manuela, a friend
I'm (am) going to Mexico to visit Manuela, a friend
How was you / your dinner yesterday?
How was your dinner yesterday?
We are meeting at the park at 2 o'clock because before that I going to the dentist's
We are meeting at the park at 2 o'clock because before that I'm (am) going to the dentist's
That book isn't mine, it's her / hers.
That book isn't mine, it's hers.
I think I won't be an engineer, I think I lie on the beach and do nothing
I think I won't be an engineer, I think I'll (will) lie on the beach and do nothing