Exercise 3 упражнения номер 3 помогите пожалуйста

Question

Exercise 3 упражнения номер 3 помогите пожалуйста

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Answer 1

2) I think I'll buy a bottle of mineral water.
3) I'll decorate my room with it.
4) I think I'll write him.
5) I don' t think I'll go to school.