Question

PAST PERFECT
5. When Mr. Smith arrived at his office, his secretary __________(have)breakfast.​

Answer 1

Respuesta:

5. When Mr. Smith arrived at his office, his secretary had had breakfast.

Explicación:

El tiempe pasado perfecto, se refiere al pasado del pasado en esta oracion primero la secretario comio su desayuno, y despues Mr. Smith llego a su oficina.

Estructura Gramatical Pasado Perfecto:

Sujeto + had + verbo en pasado participio + complemento.