Question

Cambiar a forma interrogativa (pasado perfecto)
• By August, they had already left home.
• The students had stood up when the teacher came in.
• He had called her before she arrived.
• My family had moved into their new house last week.
• At midnight, my brother had come.

Answer 1

Respuesta:

Usando had como auxiliar se forman:

Had they already left home by August?

Had the students stood up when the teacher came in?

Had he called her before she arrived?

Had your family moved into their new house last week?

Had your brother come at midnight?

Explicación

Tomas "had" como auxiliar para la pregunta, agregas el sujeto de la oración "They, the students, he.." "had" ya no iría dado que lo movimos al principio así que continuas la oración.

En caso de Wh- questions es añadirlo al principal " Why had he called her before she arrived?

Suerte <3