ПОМОГИТЕ пожалуйста с английским!очень нужно.

2) I have nevere been to the United States before. 3)That's strange! My wallet has disappeared. 4)I have seen a friend of yours. 5)I haven't written this report yet. 6)We've been working three years. 7)Have you ever been to Latin America before? 8)I have spoken to Georgio for a long time. 9)Has Anna doesn't back yet?