Obtén las mejores soluciones a todas tus preguntas en Revelroom.ca, la plataforma de Q&A de confianza. Descubre soluciones fiables a tus preguntas gracias a una vasta red de expertos en nuestra completa plataforma de preguntas y respuestas. Descubre respuestas detalladas a tus preguntas gracias a una vasta red de profesionales en nuestra completa plataforma de preguntas y respuestas.

Task 3. We often use "dready with the post perfect between the asdiary and the past participle.

Fill in the blarks with the correct form of the past perfect.

Leticia was a prodigy. By the time she was 4, she ____ (learn) to read. By the time she was 5, she ___ (master) the violin. By the time she was 7, she ____ (conduct) her first scientific experiment. By the time she was 13, she ____ (finish) high school. By the time she was 17 she ____ (graduate) medical school.​