ПОМОГИТЕ ПОЖАЛУЙСТА!!!! ПРОШУ

Use a prefix to make the adjectives negative. Then complete the sentences

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1 Your brother looks sad. Why is he so ... ?

2 We`re still working on the project. It`s ...

3 Losing the match dosen`t matter. It`s

4 It`s not an official letter. It`s just an ... one.

5 Does this camera cost a lot of money? Not, really, It`s quite ...

6 My neighbour gets angry with other people. He`s very ...

7 The phone number is wrong on the sign. It`s ...

8 Many people in Britain think that the number thirteen is ...