Past perfect continuous affirmative 9 - tutto inglese - Imparare l'inglese gratis on line

The athletes (train) under harsh conditions to improve.
They (invest) in the stock market to build their portfolio.
She (learn) to play the piano since childhood.
He (feel) unwell but continued to work.
We (experience) difficulties with the new system.
They (discuss) the merger for several months.
She (play) the violin in the orchestra for years.
I (manage) the team through the project's phases.
He (help) his neighbor fix the fence since yesterday.
We (attend) workshops to enhance our skills.