Read these sentences and fill the gaps with the correct verb from in the past perfect continuous

Привет! Давай разберёмся вместе.

1. John was very tired. He had been running.
2. He was confident because he had been rehearsing hard for the show.
3. She had been playing the trumpet for 3 years before she joined a band.

Если есть вопросы, задавай! 😊