Choose the alternative that presents correct sentences in the Present Perfect. a. Mary and John has just arrived. b. I haven’t seen him for a lon...

Vamos analisar cada alternativa: a. Mary and John has just arrived. - Incorreto. O verbo "has" não concorda com o sujeito composto "Mary and John". A forma correta seria "Mary and John have just arrived." b. I haven’t seen him for a long time. - Correto. A estrutura "haven't seen" está correta para o Present Perfect. c. We didn’t plan our holiday yet. - Incorreto. A frase está no Simple Past, não no Present Perfect. A forma correta seria "We haven't planned our holiday yet." d. She has wrote five letters. - Incorreto. O verbo "wrote" está no passado simples, e a estrutura correta no Present Perfect seria "She has written five letters." e. He spoken to his boss? - Incorreto. Está faltando o auxiliar "has" na frase. A forma correta seria "Has he spoken to his boss?" Portanto, a alternativa correta é a letra b: "I haven’t seen him for a long time."