помогите пожалуйста ​составить предложения

1.Natasha's hair is longer than Irina's.Irina has the shortes hair in the class.

2.Oleg is younher than Igor.Oleg is the youngest person in the class.

3.Ofa is older than me.Ofa is the oldest person in our class.

4.Sasha is thiner than Petya.Petya has got the biggest weight in the class.

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