I want to tell you about my holidays last summer.I travelled to the sea by train.I travelled to another country.I swam in the sea.Also I saw a lot of intresting views.I and my friends was in an aquapark.It was cool!! I ate exotic fruits!It was very delicious.I had a lot of fun.
This is a ball, т.к. that - указывает на что-то в ед. числе
2) She's got a balloon. It's her balloon.
3) They've got a car. It's their car.
4) He's got children. They're his children.
5) They've got horses. They're their horses.
6) They've got a ball. It's their ball.
7) You've got a bicycle. It's your bicycle.
8) We've got baskets. They're our baskets.
9) He's got a suitcase. It's his suitcase.
10) I've got glasses. They're my glasses.
Первое предложение первый вариант. второе предложение второй вариант